Germany's Alexander Zverev reacts as he receives medical treatment for a bleeding nose during his first round match against Britain's Andy Murray at the Australian Open tennis tournament at Melbourne Park, Australia, January 19, 2016. REUTERS/Jason Reed 

Germany's Alexander Zverev receives medical treatment for a bleeding nose during his first round match against Britain's Andy Murray at the Australian Open tennis tournament at Melbourne Park, Australia, January 19, 2016. REUTERS/Jason Reed 

Germany's Alexander Zverev receives medical treatment for a bleeding nose during his first round match against Britain's Andy Murray at the Australian Open tennis tournament at Melbourne Park, Australia, January 19, 2016. REUTERS/Jason Reed 

Majordomo Gary Dryfoos demonstrates the Medicine Prize winners' study for "treating uncontrollable nosebleeds, using the method of nasal-packing-with-strips-of-cured-pork" at the 24th First Annual Ig Nobel Prizes awards ceremony at Harvard University in Cambridge, Massachusetts September 18, 2014. The annual prizes, meant to entertain and encourage global research and innovation, are awarded by the Annals of Improbable Research as a whimsical counterpoint to the Nobel Prizes which will be announced next month. REUTERS/Brian Snyder (UNITED STATES - Tags: SCIENCE TECHNOLOGY EDUCATION SOCIETY HEALTH TPX IMAGES OF THE DAY) 

Schalke 04's Klaas-Jan Huntelaar leaves the field after getting injured during the Europa League Group J soccer match against Larnaca in Gelsenkirchen November 3, 2011. REUTERS/Ina Fassbender (GERMANY - Tags: SPORT SOCCER) 

Porto's Bruno Alves bleeds from his nose after colliding with a Maritimo player during their Portuguese Premier League soccer match at Dragao stadium in Porto December 21, 2008. REUTERS/Miguel Vidal (PORTUGAL) 

Cornel Zueger of Switzerland is attended to after he crashed in the men's World Cup Super-G ski race in Beaver Creek, Colorado December 6, 2008. REUTERS/Rick Wilking (UNITED STATES) 

Francisco Lorenzo of the Dominican Republic holds his head as sits on the canvas after fighting Humberto Soto of Mexico during their interim WBC super featherweight title fight at the Mandalay Bay Events Center in Las Vegas, Nevada on June 28, 2008. Referee Joe Cortez stopped the fight after Humberto Soto hit Lorenzo as he was down. REUTERS/Steve Marcus (UNITED STATES) 

Linesman Pat Dapuzzo bleeds on the ice after taking a skate in the face during the second period of the NHL hockey game between the Philadelphia Flyers and the New York Rangers in Philadelphia, Pennsylvania February 9, 2008. Dapuzzo left the game as a result of the injury. REUTERS/Tim Shaffer (UNITED STATES) 

Palestinian paramedics help a wounded youth during clashes after the Israeli army raided Al-Ain refugee camp near the West Bank city of Nablus September 27, 2007. REUTERS/Abed Omar Qusini (WEST BANK) 

Phoenix Suns' trainers try and stop the bleeding from the nose of guard Steve Nash during the Suns Game 1 loss to the San Antiono Spurs at the NBA Western Conference semifinals in Phoenix, Arizona, May 6, 2007. REUTERS/Jeff Topping (UNITED STATES) 

Real Madrid's Sergio Ramos bleeds after being injured during the Champions League first round, second leg soccer match against Bayern Munich in Munich March 7, 2007. REUTERS/Michael Dalder (GERMANY) 

AS Roma's Cristian Chivu receives treatment during his Champions League first knockout round, second leg soccer match against Olympique Lyon at Gerland stadium in Lyon March 6, 2007. REUTERS/Jean-Paul Pelissier (FRANCE)