Calderon, Toronto's backup point guard, was removed from the court on a stretcher and placed in a neck brace after injuring his lower back on a rebound. He was hurt with 32 seconds left, while blocking out Golden State's Mickael Pietrus. The game was delayed for several minutes as Calderon was motionless on the floor. The Raptors said he was being taken to a hospital for testing.
"He does have movement in all his limbs," Toronto spokesman Jim LaBumbard said.
LaBumbard said the 25-year-old player was smiling and gave a thumbs-up.
"He's in good spirits," he said.
Tests revealed he sustained a bruise to his left lower back, the team said later in a statement. He is listed as day-to-day, and did not accompany the team on its flight to Phoenix after the game.
Calderon helped lead to Spain to a gold medal at the world championships in September. He is 6.4 points and 3.1 assists.
Spanish teammate Jorge Garbajosa went with Calderon to the hospital.
"I think all the players are a little shook after what happened to Pape Sow this summer," Toronto coach Sam Mitchell said, referring to a fractured vertebrae that the Toronto forward suffered last summer. "Jose means a lot to us. Right now, basketball is secondary to Jose. We just hope he's OK."
Sow, who is sidelined for the season after neck surgery, was hurt driving to the basket preparing for the Las Vegas Summer League. His neck struck a player's leg as he went down.
Sow prayed from the bench as Calderon was down.
"I was praying that what happened to me, not happen to him because I know how hard it was," Sow said. "Thank God he's talking and moving. I couldn't do that when it first happened to me. I'm very glad he's moving."
Calderon's injury also brought back bad memories for Ford, who suffered a spinal-cord injury in 2004 that sidelined him for a season and a half.
"I remember the incident, but the feeling I had I block it out of my mind," Ford said.
Andrea Bargnani had 18 points, 10 rebounds and six blocks for the Raptors, who had six players reach double figures while improving to 3-2 without Bosh, their leading scorer, who has an injured left knee.
Golden State's Keith McLeod called Calderon's injury scary.
"It was unfortunate that it had to happen. It was good that he was conscious and everything, but it is a very unfortunate situation and I wish him the best," McLeod said.
Peterson had 14 points in the second half. He also had nine rebounds and three assists and finished 9-for-15 from the field.
Peterson's layup and consecutive 3-pointers gave Toronto a 95-90 lead late in the third quarter. Golden State closed within four in the final minutes of the game, but Ford made several free throws down the stretch to seal the victory.
Bargnani, the No. 1 pick in this year's draft, had the first double-double of his career. The Italian forward has improved in recent weeks while being given more playing time.
- The Warriors play their next six games against Eastern Conference teams.
- Golden State coach Don Nelson wore a blazer over a Warriors golf shirt.
- The Raptors are 7-3 at home and have won five of their last six at the Air Canada Centre.