Walker, a senior, suffered a fractured spine when he collided with teammate Julius Warmsley, a defensive lineman, helmet-to-helmet while attempting to make a tackle. Walker was unable to move and was taken off the field in an ambulance and transported to a Tulsa hospital.
Walker was in stable condition and will need spinal surgery in the "the next day or two," said Tulane's team doctor, Buddy Savoie.
"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."
The injury happened on the final play of the first half.
Cody Green threw for 274 yards and two scores, including a 74-yarder to Thomas Roberson, as the Golden Hurricane (1-1) raced to a 35-3 halftime lead. Tulsa outgained Tulane (0-2) in rushing yards, 364-7.
Josh Boutte lost his starting job just two quarters into last season, but after an impressive spring he's positioned for a bounce-back year.
Who has the best receiving corps in the ACC? It starts with Clemson and Florida State.
Bills first-round draft pick Shaq Lawson explains how the Clemson program prepared him for the NFL, the importance of his versatility in Buffalo's defense and says he doesn't need surgery on his shoulder.
Bills first-round draft pick Shaq Lawson tells Hannah Storm why he was so excited to get the call from Buffalo and his relationship with coach Rex Ryan.
If healthy, Sefo Liufau should be the starter at quarterback for Colorado. If Liufau isn't ready to go, though, transfer Davis Webb could be the guy.
With spring practice in the rearview mirror, the Cornhuskers' youth movements along both lines are well underway.