As big a deal as finally winning an Olympic gold medal was to Novak Djokovic, as much as he has accomplished in tennis — the men’s-record 24 Grand Slam trophies, the 99 total titles, the most weeks at No. 1 for any player and on and on — do not for a moment think he is satisfied as the US Open begins.

“People would ask me: ‘Now that you have basically won everything with the gold medal, what else is there to win?’ I still feel the drive. I still have the competitive spirit,” the 37-year-old from Serbia said on Saturday. “I still want to make more history and enjoy myself on the tour.”