Athletics - The Match Europe v USA - Dinamo National Olympic Stadium, Minsk, Belarus - September 9, 2019 Team USA's Rachel Schneider and Shannon Rowbury embrace after the Women's 3000m REUTERS/Vasily Fedosenko 

Athletics - IAAF Athletics Diamond League meeting Zurich - Letzigrund stadium, Zurich, Switzerland - 1/9/2016 - Shannon Rowbury of USA (R) wins ahead of Laura Muir of Britain during the 1500m women. REUTERS/Ruben Sprich TPX IMAGES OF THE DAY

REFILE - CORRECTING PHOTOGRAPHER BYLINE Athletics - IAAF Athletics Diamond League meeting Zurich - Letzigrund stadium, Zurich, Switzerland - 1/9/2016 - Shannon Rowbury of USA falls after winning the 1500m women next to Laura Muir of Britain. REUTERS/Arnd Wiegmann 

REFILE - CORRECTING PHOTOGRAPHER BYLINE Athletics - IAAF Athletics Diamond League meeting Zurich - Letzigrund stadium, Zurich, Switzerland - 1/9/2016 - Shannon Rowbury of USA celebrates after winning the 1500m women. REUTERS/Arnd Wiegmann 

Athletics - IAAF Athletics Diamond League meeting Zurich - Letzigrund stadium, Zurich, Switzerland - 1/9/2016 - Shannon Rowbury of USA (R) wins ahead of Laura Muir of Britain during the 1500m women. REUTERS/Ruben Sprich 

Athletics - IAAF Athletics Diamond League meeting Zurich - Letzigrund stadium, Zurich, Switzerland - 1/9/2016 - Shannon Rowbury of USA celebrates after winning the 1500m women. REUTERS/Arnd Wiegman 

Athletics - IAAF Athletics Diamond League meeting Zurich - Letzigrund stadium, Zurich, Switzerland - 1/9/2016 - Shannon Rowbury of USA falls after winning the 1500m women next to Laura Muir of Britain. REUTERS/Arnd Wiegman 

Athletics - IAAF Athletics Diamond League meeting Zurich - Letzigrund stadium, Zurich, Switzerland - 1/9/2016 - Shannon Rowbury of USA falls after winning the 1500m women. REUTERS/Ruben Sprich 

Athletics - IAAF Athletics Diamond League meeting Zurich - Letzigrund stadium, Zurich, Switzerland - 1/9/2016 - Shannon Rowbury of USA wins ahead of Laura Muir of Britain during the 1500m women. REUTERS/Ruben Sprich 

Athletics - IAAF Athletics Diamond League meeting Zurich - Letzigrund stadium, Zurich, Switzerland - 1/9/2016 - Shannon Rowbury of USA wins ahead of Laura Muir of Britain during the 1500m women. REUTERS/Ruben Sprich 

Shannon Rowbury of the U.S. poses with an American flag after winning the bronze medal in the women's 3000 meters during the IAAF World Indoor Athletics Championships in Portland, Oregon March 20, 2016. REUTERS/Mike Blake 

Gold medalist Genzebe Dibaba of Ethiopia (R) and Bronze medalist Shannon Rowbury of the U.S. embrace after the women's 3000 meters during the IAAF World Indoor Athletics Championships in Portland, Oregon March 20, 2016. REUTERS/Mike Blake 

Gold medalist Genzebe Dibaba of Ethiopia (C), bronze medalist Shannon Rowbury of the U.S. (L) and silver medalist Meseret Defar of Ethiopia celebrate after the women's 3000 meters during the IAAF World Indoor Athletics Championships in Portland, Oregon March 20, 2016. REUTERS/Mike Blake 

Gold medalist Genzebe Dibaba of Ethiopia (R) and Bronze medalist Shannon Rowbury of the U.S. run with their country's flags after the women's 3000 meters during the IAAF World Indoor Athletics Championships in Portland, Oregon March 20, 2016. REUTERS/Mike Blake 

Gold medalist Genzebe Dibaba of Ethiopia (R) and Bronze medalist Shannon Rowbury of the U.S. embrace after the women's 3000 meters during the IAAF World Indoor Athletics Championships in Portland, Oregon March 20, 2016. REUTERS/Mike Blake 

Sanya Richards-Ross, Ajee Wilson, Shannon Rowbury and Treniere Moser (L-R) of the U.S. team celebrate on a victory lap with U.S. national flags after setting a new world record in the distance medley relay race at the IAAF World Relays Championships in Nassau, Bahamas, May 2, 2015.

Treniere Moser, Shannon Rowbury, Ajee Wilson and Sanya Richards-Ross (L-R) of the U.S. team celebrate on the medals podium after setting a new world record in the distance medley relay race at the IAAF World Relays Championships in Nassau, Bahamas, May 2, 2015. REUTERS/Mike Segar 

Sanya Richards-Ross (standing on L), Treniere Moser, Ajee Wilson (standing on R) and Shannon Rowbury of the U.S. team pose with the clock after setting a new world record in the distance medley relay race at the IAAF World Relays Championships in Nassau, Bahamas, May 2, 2015. REUTERS/Mike Segar 

Shannon Rowbury (front) of the U.S is hugged by her teammate Treniere Moser (facing camera) after the U.S. set a new world record in winning the distance medley relay race at the IAAF World Relays Championships in Nassau, Bahamas, May 2, 2015. REUTERS/Mike Segar 

Shannon Rowbury of the U.S. reacts as she crosses the finish line as the U.S. set a new world record in winning the distance medley relay race at the IAAF World Relays Championships in Nassau, Bahamas, May 2, 2015. REUTERS/Mike Segar 

Shannon Rowbury of the U.S. reacts as she crosses the finish line as the U.S. set a new world record in winning the distance medley relay race at the IAAF World Relays Championships in Nassau, Bahamas, May 2, 2015. REUTERS/Mike Segar 

Jennifer Simpson (L) of the U.S. and her compatriot Shannon Rowbury fall on the ground in the women's 1500m event during the Weltklasse Diamond League meeting at the Letzigrund stadium in Zurich August 28, 2014. REUTERS/Arnd Wiegmann (SWITZERLAND - Tags: SPORT ATHLETICS)

Jennifer Simpson (L) of the U.S. and her compatriot Shannon Rowbury fall on the ground in the women's 1500m event during the Weltklasse Diamond League meeting at the Letzigrund stadium in Zurich August 28, 2014. REUTERS/Arnd Wiegmann (SWITZERLAND - Tags: SPORT ATHLETICS)

Jennifer Simpson (L) of the U.S. runs to win ahead of compatriot Shannon Rowbury in the women's 1500m event during the Weltklasse Diamond League meeting at the Letzigrund stadium in Zurich August 28, 2014. REUTERS/Arnd Wiegmann (SWITZERLAND - Tags: SPORT ATHLETICS)

Shannon Rowbury of the United States reacts after winning the women's 3000m event during the Diamond League Anniversary Games' meeting at the Olympic Stadium in London July 26, 2013 REUTERS/Paul Hackett (BRITAIN - Tags: SPORT ATHLETICS)

Shannon Rowbury of the United States reacts after winning the women's 3000m event ahead of compatriots Gabriele Anderson (L) and Molly Huddle during the Diamond League Anniversary Games' meeting at the Olympic Stadium in London July 26, 2013 REUTERS/Paul Hackett (BRITAIN - Tags: SPORT ATHLETICS)

Shannon Rowbury of the U.S. wins the Women's 3000m during the London Diamond League 'Anniversary Games' athletics meeting at the Olympic Stadium, in east London July 26, 2013. The venue is where the London 2012 Olympic Games were held one year ago. REUTERS/Andrew Winning (BRITAIN - Tags: SPORT ATHLETICS)

Shannon Rowbury of the U.S. wins the Women's 3000m during the London Diamond League 'Anniversary Games' athletics meeting at the Olympic Stadium, in east London July 26, 2013. The venue is where the London 2012 Olympic Games were held one year ago. REUTERS/Andrew Winning (BRITAIN - Tags: SPORT ATHLETICS)

Shannon Rowbury of the U.S. wins the Women's 3000m during the London Diamond League 'Anniversary Games' athletics meeting at the Olympic Stadium, in east London July 26, 2013. The venue is where the London 2012 Olympic Games were held one year ago. REUTERS/Andrew Winning (BRITAIN - Tags: SPORT ATHLETICS)

Nikki Hamblin (rear) of New Zealand lays on the track as Hannah England (C) of Britain, Shannon Rowbury (L) of the U.S., Mimi Belete (2nd L) of Bahrain, Siham Hilali (2nd R) of Morocco and Kalkidan Gezahegne (R) of Ethiopia sprint to the finish line during the women's 1,500 metres heats at the IAAF World Championships in Daegu August 28, 2011. REUTERS/Michael Dalder (SOUTH KOREA - Tags: SPORT ATHLETICS)

Nikki Hamblin (rear) of New Zealand falls to the track as Hannah England (C) of Britain, Shannon Rowbury (L) of the U.S., Mimi Belete (2nd L) of Bahrain, Siham Hilali (2nd R) of Morocco and Kalkidan Gezahegne (R) of Ethiopia sprint to the finish line during the women's 1,500 metres heats at the IAAF World Championships in Daegu August 28, 2011. REUTERS/Michael Dalder (SOUTH KOREA - Tags: SPORT ATHLETICS)

Lisa Dobriskey of Britain displays her medal during the awards ceremony for the women's 1500 metres at the world athletics championships at the Olympic stadium in Berlin August 23, 2009. Maryam Yusuf Jamal of Bahrain won the gold, ahead of Lisa Dobriskey of Britain, who won silver and Shannon Rowbury of the U.S.who won bronze. REUTERS/Wolfgang Rattay (GERMANY) 

Lisa Dobriskey of Britain, Maryam Yusuf Jamal of Bahrain and Shannon Rowbury of the U.S. (L-R) display their medals during the awards ceremony for the women's 1500 metres at the world athletics championships at the Olympic stadium in Berlin August 23, 2009. Maryam Yusuf Jamal of Bahrain won the gold, ahead of Lisa Dobriskey of Britain, who won silver and Shannon Rowbury of the U.S.who won bronze. REUTERS/Wolfgang Rattay (GERMANY) 

Natalia Rodriguez (C) of Spain crosses the finish line ahead of Lisa Dobriskey (L) of Britain, Maryam Yusuf Jamal (2nd L) of Bahrain and Shannon Rowbury (R) of the U.S. to win their women's 1500 meters final during the world athletics championships at the Olympic stadium in Berlin, August 23, 2009. REUTERS/Michael Dalder (GERMANY SPORT ATHLETICS) 

Shannon Rowbury celebrates after winning the women's 1500 meter final at the U.S. track and field championships in Eugene, Oregon June 27, 2009.REUTERS/Richard Clement(UNITED STATES SPORT ATHLETICS) 

Shannon Rowbury wins the women's 1500 meter run at the U.S. track and field championships in Eugene, Oregon June 27, 2009. REUTERS/Steve Dipaola (UNITED STATES SPORT ATHLETICS) 

Maryam Yusuf Jamal of Bahrain (R), runs ahead of Shannon Rowbury of the U.S. to win her 1500m women race event at the IAAF Super Grand Prix athletics meeting in Lausanne September 2, 2008. REUTERS/Michael Buholzer (SWITZERLAND) 

Athletes compete in their women's 1500m heat of the athletics competition in the National Stadium at the Beijing 2008 Olympic Games August 21, 2008. Running next to Corrigan is Iryna Lishchynska of Ukraine. From left: Lisa Dobriskey of Britain, Sylwia Ejdys of Poland, Nancy Jebet Langat of Kenya, Anna Alminova of Russia, Nataliya Tobias of Ukraine and Shannon Rowbury of the U.S. REUTERS/Jerry Lampen (CHINA) 

Shannon Rowbury (R) celebrates with second place finisher Erin Donohue (L) after winning the women's 1500 meters final at the U.S. Olympic Track and Field Trials in Eugene, Oregon, July 6, 2008. REUTERS/Steve Dipaola (UNITED STATES) (BEIJING OLYMPICS 2008 PREVIEW) 

Shannon Rowbury runs ahead of the pack on way to winning the women's 1500 meters final at the U.S. Olympic Track and Field Trials in Eugene, Oregon, July 6, 2008. REUTERS/Gary Hershorn (UNITED STATES) (BEIJING OLYMPICS 2008 PREVIEW) 

Shannon Rowbury (L) celebrates with second place finisher Erin Donohue (R) after winning the women's 1500 meters final at the U.S. Olympic Track and Field Trials in Eugene, Oregon, July 6, 2008. REUTERS/Steve Dipaola (UNITED STATES) (BEIJING OLYMPICS 2008 PREVIEW) 

Shannon Rowbury (L) celebrates with second place finisher Erin Donohue (R) after winning the women's 1500 meters final at the U.S. Olympic Track and Field Trials in Eugene, Oregon July 6, 2008. REUTERS/Gary Hershorn (UNITED STATES) (BEIJING OLYMPICS 2008 PREVIEW) 

Shannon Rowbury celebrates winning the women's 1500 meters final at the U.S. Olympic Track and Field Trials in Eugene, Oregon July 6, 2008. REUTERS/Gary Hershorn (UNITED STATES) (BEIJING OLYMPICS 2008 PREVIEW) 

Shannon Rowbury of the U.S. celebrates as she crosses the finish line to win the women's 1500 meter run during the Adidas Track Classic in Carson, California May 18, 2008. REUTERS/Danny Moloshok (UNITED STATES) 

Shannon Rowbury of the U.S. crosses the finish line as she wins the women's 1500 meter run during the Adidas Track Classic in Carson, California May 18, 2008. REUTERS/Danny Moloshok (UNITED STATES) 

Shannon Rowbury breaks the tape at the finish line for the Women's 3000 Meter Run, with a time of 8:55.19 at the USA Indoor Track & Field Championships in Boston, Massachusetts February 23, 2008. REUTERS/CJ Gunther (UNITED STATES)