View the entire collection of winning images from the 55th World Press Photo Contest. The winners were selected from over 100,000 images submitted to the contest.
In the amateur street fighting tournament known as strelka in Russia, fighters compete on sand without a time limit. Only a knockout or surrender stops the fight.
Blackrock College scrum-half Conor Crowley releases the ball after a ruck, during a Division 1A All-Ireland League rugby union match against Old Belvedere.