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.
Trevone Boykin threw five touchdown passes, including four to freshman KaVontae Turpin, and No. 4 TCU rode a 30-point first quarter to a 50-7 rout of Texas on Saturday.
LJ Scott ran for 146 yards and two touchdowns, and No. 2 Michigan State held on through a lackluster second half to beat Purdue 24-21 on Saturday.
No. 25 Florida could be without quarterback Will Grier as at least 21 players have been hit by the flu bug prior to Saturday's games against No. 3 Mississippi.
The Oregon Ducks and Oregon State Beavers have added decals to the backs of their helmets to honor the Umpqua Community College shooting victims.
After complaints from alumni, Penn State has reversed course on its plan to honor a war veteran Saturday with past ties to the charity of convicted child molester Jerry Sandusky.
Georgia receiver Isaiah McKenzie has apologized for his involvement in an incident that led to police being called to an Athens restaurant.