Erin Stealey practises with her hoop next to the blast furnaces of the now-closed Bethlehem Steel mill in Bethlehem, Pennsylvania, U.S. April 21, 2016. After Bethlehem Steel's blast furnaces went silent 20 years ago in the city of Bethlehem, Pennsylvania, the local economy bounced back as new industrial parks filled with e-commerce companies and white-collar businesses fleeing New York's higher costs. That adds to the challenge for Donald Trump, Republican nominee for the U.S. presidency, as he seeks voters' backing in the state's primary on April 26. REUTERS/Brian Snyder SEARCH "BETHLEHEM STEEL" FOR THIS STORY. SEARCH "THE WIDER IMAGE" FOR ALL STORIES

A woman plays with a hoop on Zikim beach in the Mediterranean sea near the southern Israeli city of Ashkelon February 18, 2016. REUTERS/Amir Cohen

A migrant leans against a collapsed basketball backboard at the Eleonas refugee camp in Athens, Greece, January 5, 2016. REUTERS/Alkis Konstantinidis

A migrant leans against a collapsed basketball backboard at the Eleonas refugee camp in Athens, Greece, January 5, 2016. REUTERS/Alkis Konstantinidis TPX IMAGES OF THE DAY

Spain's Pau Gasol goes up for a basket over Greece's Nick Calathes during their EuroBasket 2015 quarter-final game at the Pierre Mauroy stadium in Villeneuve d'Ascq, near Lille, France, September 15, 2015. REUTERS/Juan Carlos Hidalgo/Pool

Spain's Pau Gasol (L) goes up for a basket over Greece's Yannis Bourousis during their EuroBasket 2015 quarter-final game at the Pierre Mauroy stadium in Villeneuve d'Ascq, near Lille, France, September 15, 2015. REUTERS/Juan Carlos Hidalgo/Pool

Greece's Giannis Antetokounmpo (R) goes for a basket over Spain's Nikola Mirotic during their EuroBasket 2015 quarter-final game at the Pierre Mauroy stadium in Villeneuve d'Ascq, near Lille, France, September 15, 2015. REUTERS/Juan Carlos Hidalgo/Pool

Greece's Giannis Antetokounmpo (L) goes for a basket past Spain's Pau Gasol during their EuroBasket 2015 quarter-final game at the Pierre Mauroy stadium in Villeneuve d'Ascq, near Lille, France, September 15, 2015. REUTERS/Emmanuel Dunand/Pool

Greece's Kostas Koufos (R) and Spain's Pau Gasol fight for a rebound during their EuroBasket 2015 quarter-final game at the Pierre Mauroy stadium in Villeneuve d'Ascq, near Lille, France, September 15, 2015. REUTERS/Emmanuel Dunand/Pool

A basketball hoop is pictured at a burnt property during the so-called Valley Fire near Middleton, California, September 14, 2015. A Northern California wildfire ranked as the most destructive to hit the drought-stricken U.S. West this year has claimed one life and burned at least 400 homes to the ground, fire officials reported on Monday, saying they expected the property toll to climb REUTERS/David Ryder

Laura Halford of Wales jumps during her hoop routine as she competes in the rhythmic gymnastics individual all-around final event at the 2014 Commonwealth Games in Glasgow, Scotland, July 25, 2014. REUTERS/Phil Noble (BRITAIN - Tags: SPORT GYMNASTICS)

Brazil compete in the group apparatus final at the Pan American Games in Guadalajara October 18, 2011. REUTERS/Lucy Nicholson (MEXICO - Tags: SPORT GYMNASTICS)

Police volunteers demonstrate their skills during a graduation ceremony in Misrata July 11, 2011. Libyan rebels dug into defensive positions and took more casualties on Monday, stalled in their advance towards Tripoli in a slowing campaign that is starting to irk NATO allies. REUTERS/Thaier al-Sudani (LIBYA - Tags: CONFLICT POLITICS CIVIL UNREST MILITARY)

A Palestinian man jumps through a ring of fire during a summer camp organised by the Hamas movement in the Gaza Strip June 28, 2011. If pro-Palestinian activists unexpectedly manage to slip past Israel's naval blockade on the Gaza Strip in the coming days, they might be surprised by what they see in the Hamas-controlled enclave. Roads are being paved, houses are being built, new cars have taken to the busy streets and shops are full of myriad products. Picture taken by June 28, 2011. To match feature PALESTINIAN-ISRAEL/GAZA REUTERS/Ibraheem Abu Mustafa (GAZA - Tags: POLITICS SOCIETY)

A girl practices with hula hoops at an acrobatic school in Shenyang, Liaoning province May 20, 2011. REUTERS/Stringer (CHINA - Tags: ENTERTAINMENT)

A trained monkey jumps through a hoop during a Topeng Monyet (Monkey Mask) show, a traditional Indonesian street performance, in east Jakarta April 25, 2011. Karmini, a monkey trainer who has four trained monkeys, said his group can collect $10 a day for their performance. REUTERS/Beawiharta (INDONESIA - Tags: SOCIETY ANIMALS ODDLY)

A Sapsal dog performs during a mascot tour to promote the upcoming IAAF World Championships Daegu 2011 in Seoul, April 13, 2011. The championship mascot "Sarbi" is derived from the Sapsal dog, an indigenous canine breed from the region around Daegu, about 300 km (189 miles) southeast of Seoul. The Championships will be held from August 27 to September 4, 2011. REUTERS/Truth Leem (SOUTH KOREA - Tags: ANIMALS SPORT ATHLETICS)

A nine-year-old yellow Sapsaree named Ssoidol performs for patients undergoing therapy at a rehabilitation hospital with its handler Kim Sung-ran in Yeongcheon October 29, 2010. Sapsarees, shaggy-haired dogs long valued for their loyalty, were killed in large numbers by the Japanese military during the period of Japanese colonial rule, but have since made a comeback thanks to Ha Ji-Hong, a U.S.-educated geneticist who combined traditional breeding with advances in modern DNA technology. Picture taken October 29, 2010. To match Reuters Life! KOREA DOG/SAVED REUTERS/Hyungwon Kang (SOUTH KOREA - Tags: SOCIETY ANIMALS)

A nine-year-old yellow Sapsaree named Ssoidol performs for patients undergoing therapy at a rehabilitation hospital in Yeongcheon, South Korea October 29, 2010. Sapsarees, shaggy-haired dogs long valued for their loyalty, were killed in large numbers by the Japanese military during the period of Japanese colonial rule, but have since made a comeback thanks to Ha Ji-Hong, a U.S.-educated geneticist who combined traditional breeding with advances in modern DNA technology. Picture taken October 29, 2010. To match Reuters Life! KOREA DOG/SAVED REUTERS/Hyungwon Kang (SOUTH KOREA - Tags: SOCIETY ANIMALS)

Artist Vlad Olandar holds a hoop as a cat jumps through during the rehearsal of a new show by Swiss National-Circus Knie in the town of Rapperswil east of Zurich March 26, 2010. Circus Knie starts its tour 2010 later today. REUTERS/Christian Hartmann (SWITZERLAND - Tags: ENTERTAINMENT ANIMALS ODDLY IMAGES OF THE DAY)

An Israeli dives into a natural spring, which empties and refills itself every 20 minutes, to escape the unseasonable high temperatures in Ein Fawwar, near the West Bank city of Jericho, February 15, 2010. Temperatures in some areas in Israel and the Palestinian Territories rose above 30 degrees Celsius (86 degrees Fahrenheit) on Monday. REUTERS/Ammar Awad (WEST BANK - Tags: ENVIRONMENT IMAGES OF THE DAY)

An Indonesian street vendor displays her toys at a market in Jakarta January 15, 2010. REUTERS/Beawiharta (INDONESIA - Tags: SOCIETY)

Kalle the sea lion leaps through a hoop at the zoo in Ljubljana September 6 , 2009. Kalle is a California sea lion. REUTERS/Srdjan Zivulovic (SLOVENIA ANIMALS)

A dog jumps through a ring during training at the Ukrainian border guard dog training center near Velyki Mosty village, about 50 km (30miles) northwest of Lviv June 16, 2009. Every year, the biggest dog training centre in the former Soviet Union prepares hundreds of trained dogs for Ukrainian border guards as well as for presidential guards and other special forces. REUTERS/Gleb Garanich (UKRAINE MILITARY ANIMALS SOCIETY)

A racegoer shows off her hat on ladies' day at Royal Ascot June 19, 2008. REUTERS/Andrew Winning (BRITAIN)

A racegoer shows off her hat on ladies' day at Royal Ascot June 19, 2008. REUTERS/Andrew Winning (BRITAIN)

A police dog jumps through a hoop during an exhibition marking the Republic's police day in Belgrade June 15, 2008. REUTERS/Djordje Kojadinovic (SERBIA)

Los Angeles Lakers Kobe Bryant (C) goes high under pressure from Boston Celtics' defenders Leon Powe (3rd-L) and P.J. Brown (2nd-R) in the third quarter during Game 4 of the NBA Finals basketball championship in Los Angeles June 12, 2008. At left is the Lakers' Lamar Odom and at right is the Celtics' Paul Pierce. Second from left is Celtics' Ray Allen. REUTERS/Jeff Haynes (UNITED STATES)

San Antonio Spurs Tony Parker sails to the basket past Los Angeles Lakers Sasha Vujacic (L) during Game 2 of their NBA Western Conference final basketball playoff series in Los Angeles, May 23, 2008. REUTERS/Danny Moloshok (UNITED STATES)

Los Angeles Lakers Kobe Bryant slam dunks for two points against the San Antonio Spurs during Game 2 of their NBA Western Conference final basketball playoff series in Los Angeles, May 23, 2008. REUTERS/Lucy Nicholson (UNITED STATES)

A police dog jumps through a hoop of fire during anti-terrorism military training in Tianjin municipality, April 4, 2008. This paramilitary unit will be responsible for the security of the Olympic soccer venue in Tianjin during the Olympics, local media reported. Picture taken April 4, 2008. REUTERS/Stringer (CHINA)

A police dog jumps through a hoop of fire during anti-terrorism military training in Tianjin municipality, April 4, 2008. This paramilitary unit will be responsible for the security of the Olympic soccer venue in Tianjin during the Olympics, local media reported. Picture taken April 4, 2008. REUTERS/Stringer (CHINA)

Georgetown University forward Patrick Ewing, Jr. (R), stuffs the ball over Villanova University forward Dante Cunningham (L) during the second half of their NCAA Big East men's basketball tournament game at Madison Square Garden in New York, March 13, 2008. REUTERS/Ray Stubblebine (UNITED STATES)

Los Angeles Lakers Kobe Bryant (L) fights for a rebound with Toronto Raptors Joey Graham during their NBA basketball game in Los Angeles March 11, 2008. REUTERS/Lucy Nicholson (UNITED STATES)

Actress Jessica Alba, wearing earrings by Cartier, arrives at the 80th annual Academy Awards, the Oscars, in Hollywood February 24, 2008. REUTERS/Mario Anzuoni (UNITED STATES-OSCARS)

Actress Jessica Alba, wearing earrings by Cartier, poses on the red carpet as she arrives at the 80th annual Academy Awards, the Oscars, in Hollywood February 24, 2008. REUTERS/Mario Anzuoni (UNITED STATES-OSCARS)

Los Angeles Lakers Andrew Bynum dunks during the second quarter of their NBA basketball game against the Cleveland Cavaliers in Cleveland December 20, 2007. REUTERS/Aaron Josefczyk (UNITED STATES)

CSKA Moscow's Theodoros Papaloukas (L) vies for the ball with Prokom Sopot's Jovo Stanojevic during their basketball Euroleague group A match in Moscow, December 12, 2007. REUTERS/Tatyana Makeyeva (RUSSIA)

A performer rehearses for the 2007 Open Air International Arts Festival which will take place from November 2 to 4 in National Chang Kai-shek Cultural Center in Taipei October 23, 2007. REUTERS/Pichi Chuang (TAIWAN)

Residents take part in activities at Pineyro del Campo, a home for the elderly, in Montevideo October 5, 2007. According to the Uruguayan National Institute of Statistics, the country's population is shrinking and getting older, with 13.4 percent of the population now over 65 years old. Picture taken October 5, 2007. REUTERS/Andres Stapff (URUGUAY)

Russia's Andrei Kirilenko looks at the ball during their second round game against Croatia at the European Basketball Championships in Madrid September 11 , 2007. REUTERS/Ivan Milutinovic (SPAIN)

A Russian girl performs a ring dance during a show at a circus in the northern Indian city of Allahabad September 9, 2007.
REUTERS/Jitendra Prakash (INDIA)

France's Tony Parker goes up for a basket against Germany during their second round game at the European Basketball Championships in Madrid September 8, 2007. REUTERS/Victor Fraile (SPAIN)

Israel's Yaniv Green (in white) goes up for a basket past Marko Popovic of Croatia during their second round game at the European Basketball Championships in Madrid September 7, 2007. REUTERS/Victor Fraile (SPAIN)

Russia's Victor Khryapa dunks during the European basketball championships Preliminary round Group A match against Serbia in Granada September 3, 2007. REUTERS/Ivan Milutinovic (SPAIN)

A Russian girl performs a ring-dance during a show at a circus in the northern Indian city of Allahabad, August 26, 2007. REUTERS/Jitendra Prakash (INDIA)

A young Colombian displaced by violence from the country's guerrilla war participates in a rally in Bogota supporting Colombia's internally displaced population, estimated at more than 3 million people, July 27, 2007. REUTERS/Jose Miguel Gomez (COLOMBIA)

Jordan Adams of Canada (L) goes to the hoop against Candice Wiggins of the U.S. during their women's semi-final basketball game at the Pan American Games in Rio de Janeiro July 23, 2007. REUTERS/Jim Young (BRAZIL)

A model wears a creation from Cia. Maritima's 2008 spring/summer collection during Sao Paulo Fashion Show, June 13, 2007. REUTERS/Paulo Whitaker (BRAZIL)

A Palestinian member of the Hamas security forces jumps through a ring of fire during a graduation ceremony in Khan Yunis April 16, 2007. REUTERS/Ibraheem Abu Mustafa (GAZA)

The University of Florida Gators Walter Hodge (15) shoots past the Ohio State Buckeyes Othello Hunter (45) during their NCAA Final Four men's basketball championship game in Atlanta, Georgia, April 2, 2007. REUTERS/Chris Steppig/NCAA Photos/Pool (UNITED STATES)

University of North Carolina Tar Heels' Deon Thompson scores over the Georgetown Hoyas in their NCAA men's East Regional final basketball game in East Rutherford, New Jersey, March 25, 2007. REUTERS/Mike Segar (UNITED STATES)

Los Angeles Lakers' Kobe Bryant makes a dunk during his team's game against the Memphis Grizzlies during the fourth quarter of NBA basketball action in Memphis, Tennessee on March 22, 2007. REUTERS/A.J. Wolfe (United States)

Texas A&M's Joseph Jones (top) and Memphis' Joey Dorsey watch the ball duing their NCAA men's South Regional semi-final basketball game in San Antonio, Texas March 22, 2007. REUTERS/Lucy Nicholson (UNITED STATES)

Kansas' Darnell Jackson dunks the ball during his team's win over Southern Illinois in their NCAA men's West Regional semi-final basketball game in San Jose, California March 22, 2007. REUTERS/Robert Galbraith (UNITED STATES)

Los Angeles Lakers' Kobe Bryant goes up to score two of his 50 points during their NBA basketball win against the Minnesota Timberwolves in Los Angeles March 18, 2007. REUTERS/Lucy Nicholson (UNITED STATES)

Two boys play basketball as the sun sets in El Crucero, about 26 km (17 miles) south of Managua, March 13, 2007. REUTERS/Oswaldo Rivas (NICARAGUA)
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Artistes perform during an acrobatics show in Beijing February 21, 2007. Acrobatics, dating back more than 2,000 years, is one of China's oldest art forms. Picture taken February 21, 2007. REUTERS/Claro Cortes IV (CHINA)

NBA All-Star Shaquille O'Neal (R) dunks over Amare Stoudemire during the 2007 NBA All-Star basketball game in Las Vegas February 18, 2007 REUTERS/Kevork Djansezian/Pool (UNITED STATES)

Acrobats from the group "Kings of the Court" dress like Elvis Presley as they entertain the crowd during the NBA All-Star Celebrity Game held in Las Vegas, February 16, 2007. REUTERS/Mike Blake (UNITED STATES)