Novak Djokovic sealed his path to the third round of the US Open with a straight sets 7-5, 6-3, 7-6 (8/6) triumph over Philipp Petzchner of Germany, ignoring a fight which broke out in the stand.
The third seed was runner up in the 2007 US Open and has reached the semi-final for the past two years- losing each time to Roger Federer.
Djokovic now plays unseeded American James Blake, ranked 108th in the world, in the third round.
“When I come to the Open, there is definitely something different, some memories for me, some good feelings,” the Serb told The Guardian. “Just the energy level from the crowd gets my feet moving a little better. I want to go on a good run for them.”
On the fighting in the crowd, US Tennis Association spokesman Chris Widmaier told Sky Sports that it was a “disagreement over verbiage”.