SAN ANTONIO — Tony Parker sprained his left ankle tonight against Miami and is expected to miss at least two weeks, adding more misery to the already short-handed Spurs.

The NBA's leading scorer rolled his left ankle while driving for a layup late in the first quarter, then winced and stayed crouched on the baseline for several seconds before collapsing behind the basket.

Parker sustained a moderate lateral ankle sprain and will probably be out more than two weeks, said Dr. Paul Saenz, a team physician. An MRI was expected to be performed Saturday.

The team said X-rays were negative.

Parker scored 55 points against Minnesota on Wednesday, leading San Antonio to a double-overtime victory and avoiding its first 0-4 start since 1973. The Spurs have sputtered without Manu Ginobili, the other member of the "Big Three" along with Tim Duncan.

Ginobili, who was San Antonio's leading scorer last season, is still recovering from ankle surgery this offseason and is not expected back until next month at the earliest.

Without Ginobili, the Spurs have leaned heavily on Parker and Duncan for offense. The duo has been responsible for 59 percent of San Antonio's scoring entering Friday's game, and had taken 55 percent of the team's shots.

Parker was 2-of-5 from the field and scored four points before leaving the game. Rookie George Hill replaced Parker at point guard.

Parker entered Friday leading the league in scoring at 33.3 points a game. Duncan was third, averaging 27 points.