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.
Wimbledon 2016: Novak Djokovic loses in shock upset to Sam Querrey. London: The unthinkable has occurred at Wimbledon: Novak Djokovic, the holder of all four grand slam titles, has been beaten in the third round. What world No.41 Sam Querrey started on Friday night before rain intervened, the American completed 7-6 (8-6), 6-1, 3-6, 7-6 (7-5). Extraordinary.