Djokovic is only interested in tennis' biggest prizes. He still has the game to win them, but at age 37 his body is letting him down

Novak Djokovic is 37 and was forced to stop playing because of an injury at two of the past four Grand Slam tournaments

After dropping his opening set at the Australian Open to Nishesh Basavareddy, Noavk Djokovic eventually asserted himself for a victory to begin his bid for an 11th championship at Melbourne Park and a record 25th major title overall.