World number one Novak Djokovic says he must earn the support of tennis fans after facing crowd hostility in his US Open final victory over Roger Federer.
The Serb beat Federer 6-4 5-7 6-4 6-4 at Flushing Meadows on Sunday to win his 10th Grand Slam title.
But as he battled to win his third tennis major of 2015, Djokovic was booed and jeered by Federer supporters.
"I'm there to earn the support and hopefully in the future I can be in that position," Djokovic said.
"Djokovic is a wonder of a ferociously competitive age.