A person's anaerobic threshold has been reached when their body is under extreme conditions and the burning of oxygen can not keep up with the body's demands.
Novak Djokovic captured his second straight Wimbledon title and the third of his career by defeating Roger Federer 7-6, 6-7, 6-4, 6-3 in Sunday's men's final at the All England Club. Djokovic is the first man to repeat as Wimbledon champion since Federer won five in a row between 2003 and 2007.
Roger Federer and Novak Djokovic are still on course for an epic meeting in the men's final at Wimbledon. Both pulled off straight-sets quarterfinal victories on Wednesday, and if the two men can survive the semifinal round, they will meet on Centre Court for the championship on Sunday.