Novak Djokovic wasn't optimistic about his right ankle injury after lifting Serbia to an insurmountable 3-1 lead over the United States with a 7-5, 6-7 (4), 6-1, 6-0 win over Sam Querrey in a Davis Cup quarterfinal.
The world No. 1 twisted the ankle while hitting a forehand in the third game of the match Sunday.
''Injuries are part of the sport and you try to avoid them as an athlete as much as you can,'' Djokovic said. ''The nature of the injury is still to be determined.
''One hour, one hour and a half after the end of the match, all I can say is it doesn't look good.''
Djokovic had the ankle tightly wrapped and had taken anti-inflammatory pills. He plans to travel home to Monte Carlo to have an MRI scan.
He was hoping to be ready to play the Monte-Carlo Rolex Masters, which he considers his home event, but didn't sound convinced he'd be ready to play when it gets underway April 14.
''It's swollen, and when ...