TULSA — Tulane safety Devon Walker fractured his spine in a head-to-head collision with a teammate during a game in Tulsa, the team doctor said Saturday.

Dr. Buddy Savoie said during a postgame news conference that Walker is in stable condition and will need spinal surgery in the "the next day or two."

"He was stable when we transported him," Savoie said. "I do not think, based on the information we have, his life was ever in danger."

Tulsa was leading 35-3 and facing a fourth-and-2 with the ball at the 33-yard line when the Golden Hurricane called timeout. Tulane then called timeout.

When play resumed, Tulsa quarterback Cody Green tossed a short pass to Willie Carter, who caught it at about the 28, and turned upfield. He was tackled around the 18-yard line, with defensive tackle Julius Warmsley and Walker sandwiching him and apparently smashing the crowns of their helmets into each other.

Medical personnel from both teams came out about 12:37 p.m. to attend to Walker as he lay on the field.

Savoie said after the game that Walker "actually never completely lost consciousness" and was breathing.

About 12:52 p.m., he was lifted onto a stretcher and loaded into a waiting ambulance about two minutes later. The ambulance drove off the field about 1 p.m.

FOX Sports reported a hush went over the crowd at H.A. Chapman Stadium as Walker was attended to on the field, and that several coaches were in tears. Spectators bowed their heads as someone on the field led the stadium in prayer.

The game resumed at 1:20 p.m.

Walker is a senior majoring in cell and molecular biology. His brother, Raynard, told The Associated Press that their mother was watching the game on television when her son was injured.

The family was waiting for an update on Walker's condition, he said.

"We haven't heard much at all," he added. "We're still kind of in the dark right now."

Tulane head coach Curtis Johnson told a FOX Sports sideline TV reporter after the 45-10 loss that he hadn't received an update on Walker's condition, but said the injury had devastated his team.

"He's one of us, and he's a good kid," Johnson said.

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Associated Press writers Michael Kunzelman in New Orleans and Jeff Latzke in Oklahoma City contributed to this report.