Bolton Wanderers footballer Fabrice Muamba poses for a photograph with Dr Andrew Deaner and Dr Sam Mohiddin in this undated photograph
(HANDOUT/REUTERS)
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Arsenal's van Persie challenges Wigan Athletic's Figueroa during the English Premier League soccer match at the Emirates Stadium in London
(STEFAN WERMUTH/REUTERS)
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Dallas Mavericks forward Dirk Nowitzki (41) reacts after hitting a three point shot during the second half of their NBA basketball game against the Utah Jazz in Salt Lake City, Utah
(JIM URQUHART/REUTERS)
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Hungarian swimmer Laszlo Cseh swims underwater during a training session in Budapest April 12, 2012. As Hungarian swimmer Laszlo Cseh trains in four-hour, early-morning sessions, his mind is on the man who could once again spoil his Olympic dream: Michael Phelps. Cseh won his only world championship gold in an event Phelps decided to skip in 2005. When Phelps skipped more events, another American, Ryan Lochte was there to claim the crown, leaving Cseh in second or third place again. Picture taken April 12, 2012
(REUTERS/Laszlo Balogh)
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Gomez of Bayern Munich scores his team's winning against goalkeeper Casillas of Real Madrid during their Champions League semi-final first leg soccer match in Munich
(KAI PFAFFENBACH/REUTERS)
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Blue Jays batter Bautista celebrates his solo home run with Encarnacion during their MLB American League baseball game in Toronto
(MIKE CASSESE/REUTERS)
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Puyol and Busquets of Barcelona and Terry of Chelsea jump for a header during their Champions League semi-final first leg soccer match in London
(DYLAN MARTINEZ/REUTERS)
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Chelsea's Didier Drogba reacts due to an injury during their Champions League semi-final first leg against Barcelona at Stamford Bridge in London
(EDDIE KEOGH/REUTERS)
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Rebecca Lee-Bentham of Canada hits out of the bunker on the 18th green during first round of the LPGA Lotte Championship in Kapolei, Hawaii.
(HUGH GENTRY/REUTERS)
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Orlando Magic's Jameer Nelson, Ryan Anderson and Glen Davis guard Boston Celtics Paul Pierce as he makes a shot in front of Orlando Magic Jason Richardson in the second half of their NBA basketball game at TD Garden in Boston
(JESSICA RINALDI/REUTERS)
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Sporting KC goalkeeper Jimmy Nielsen yells at the referee after being scored on by the Vancouver Whitecaps during the second half of their MLS soccer match in Vancouver
(BEN NELMS/REUTERS)
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Vancouver Canucks left wing Daniel Sedin hits Los Angeles Kings center Colin Fraser in the face in the third period during Game 4 of their NHL Western Conference Hockey playoff quarter-finals in Los Angeles
(DANNY MOLOSHOK/REUTERS)
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Texas Ranger third baseman Adrian Beltre throws out Detroit Tigers Austin Jackson at first base during the fifth inning of their MLB baseball game in Detroit
(REBECCA COOK/REUTERS)
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Guan of China watches his shot during the Championship Pro-Am of the Volvo China Open at Binhai Lake Golf Club in Tianjin municipality
(HANDOUT/REUTERS)
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A referee holds back the Phoenix Suns' Lopez after a few Los Angeles Clippers players charged at him after a hard foul on their teammate Griffin during their NBA basketball game in Phoenix
(DARRYL WEBB/REUTERS)
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Nayara Leite Figuiera and Lara Puglia Teixeira of Brazil perform during the Duets Free Routine at the synchronised swimming qualification event in Stratford
(TOBY MELVILLE/REUTERS)
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New York Mets Nieuwenhuis is out trying to score potential winning run as San Francisco Giants Sanchez holds ball in MLB game New York
(RAY STUBBLEBINE/REUTERS)
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Arsenal's Sagna challenges Chelsea's Malouda during the English Premier League soccer match at the Emirates Stadium in London
(STEFAN WERMUTH/REUTERS)
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Shadow of Serbia's Djokovic is seen cast on ground during his match against Berdych of Czech Republic during semi-final of Monte Carlo Masters in Monaco
(ERIC GAILLARD/REUTERS)
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Triathletes run out of the Red Sea during the Elite Menâs Triathlon ETU European Championships in the southern Israeli city of Eilat
(RONEN ZVULUN/REUTERS)
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Borussia Dortmund's Piszczek pours beer over coach Klopp after winning German Championship following German first division Bundesliga soccer match against Borussia Moenchengladbach in Dortmund
(INA FASSBENDER/REUTERS)
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Real Madrid's Ronaldo grimances in pain after being tckled by Barcelona's Alves during their Spanish first division El Clasico soccer match in Barcelona
(GUSTAU NACARINO/REUTERS)
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Wizards' Nene scores the game-winning basket against the Heat as the clock runs out in the second half of their NBA basketball game in Miami
(Andrew Innerarity/REUTERS)
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Florida Panthers' Kopecky congratulates goalie Theodore on his shutout against the New Jersey Devils in their NHL Eastern conference quarterfinal playoff hockey in Sunrise
(RHONA WISE/REUTERS)
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Players of Rapid Wien and Sturm Graz are pictured on pitch after fans of Rapid Wien ignited green flares during their Austrian League soccer match in Vienna
(LISI NIESNER/REUTERS)
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Nick Lucena of the U.S. reacts after he was defeated in his final match against Phil Dalhausser and Todd Rogers of U.S. in the FIVB World Beach Volleyball Championships in Brasilia
(UESLEI MARCELINO/REUTERS)
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Juventus' Vidal celebrates after scoring his second goal against AS Roma during their Italian Serie A soccer match in Turin
(STEFANO RELLANDINI/REUTERS)
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Vancouver Canucks Schneider throws the puck down on the ice after his teams season ends with an overtime goal to the celebrating Los Angeles Kings during Game 5 of their NHL Western Conference quarter-final hockey playoff game in Vancouver
(BEN NELMS/REUTERS)
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