TORONTO -- Raptors star Vince Carter was listed as day-to-day after an MRI on Sunday showed no structural damage to the surgically repaired left knee he reinjured the night before.

	Carter

Carter strained his left quadriceps tendon Saturday, collapsing in the first quarter of Toronto's 88-76 loss to the Houston Rockets. He was helped to the locker room.

Carter's "jumper's knee'' is an overuse injury, and cost him 22 games at the end of last season. He played his final game March 19, then underwent surgery the following week.

The Raptors rallied in Carter's absence last season, winning 12 of 14 down the stretch to reach the playoffs. He vowed to return this season better than ever.

The 25-year-old Carter played through the preseason and Toronto's first two games saying he felt no pain. He seemed to be back to his acrobatic self, throwing down a huge one-handed dunk Friday night in a loss at San Antonio.

The three-time All-Star was the team's leading scorer in the first two games, averaging 18 points and three rebounds in 36 minutes.

The Raptors also lost forward Antonio Davis on Saturday night with a strained muscle in his left ribcage. He is expected to miss one-to-two weeks.