Sport pictures of the week

Nuremburg, Germany, February 16: Belarussian boxer Sergei Liakhovich takes a punch from Russia's Nikolai Valuev during their WBA heavyweight eliminator bout. Valuev won the fight on points Photograph: Christof Stache/AP

New Orleans, US, February 16: Dwight Howard of the Orlando Magic sails towards the basket during the NBA's Slam Dunk Contest on All-Star weekend Photograph: Larry W. Smith/EPA

Vancouver, Canada, February 16: Mike Weaver of the Vancouver Canucks NHL team knocks the helmet off Curtis Glencross of the Edmonton Oilers Photograph: Richard Lam /AP

Liberec, Czech Republic, February 16: Bernhard Gruber, bottom, and Ronny Ackermann compete in the Nordic combined World Cup Photograph: Petr David Josek/AP

Nawashiro, Japan, February 17: Xiaopeng Han of China competes in the aerials men's final of the Freestyle FIS World Cup Photograph: Junko Kimura /Getty

Newcastle, UK, February 17: Jonny Wilkinson of the Newcastle Falcons tries to evade a tackle in the Guiness Premiership match against Saracens, which the Falcons narrowly won Photograph: Owen Humphreys/PA

Altenberg, Germany, February 17: Andre Lange and Kevin Kuske celebrate recording the fastest time in the two-man sled event at the Bobsleigh World Cup Photograph: Norbert Millauer/AFP

New Orleans, US, February 17: LeBron James dunks over Dirk Nowitzki in the fourth quarter of the NBA All-Star game. James won the MVP award as the East defeated the West 134-128 Photograph: Eric Gay /EPA

Santa Rosa, US, February 18: Riders relax after completing the first stage of the Tour of California Photograph: Christian Petersen/Getty

Adelaide, Australia, February 19: Sri Lanka's Kumar Sangakkarra plays an unorthodox shot against India during their one-day CB Series match Photograph: Rick Rycroft /AP

Athens, Greece, February 19: Vassilios Torosidis of Olympiakos rues a missed chance in the Champions League tie against Chelsea, which ended in a 0-0 stalemate Photograph: Aris Messinis/AFP

Beijing, China, February 21: Yaima Mena and Annia Rivera of Cuba compete in the women's 10 metre synchronised diving competition Photograph: Frederic J. Brown/AFP

Altenberg, Germany, February 21: Home favourite Florian Grassl competes in the first run of the men's skeleton world championship Photograph: Norbert Millauer /AFP