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.
Novak Djokovic celebrated his Wimbledon final victory over Roger Federer by eating the grass on Centre Court in front of the cheering crowds. World No1 Djokovic let out a mighty roar following his 7-6, 6-7, 6-4, 6-3 win against the Swiss player in SW19 on Sunday afternoon before chowing down on the vegetation.