SANTA CLARA, Calif. -- San Francisco 49ers rookie defensive tackle Gracen Halton suffered a season-ending broken left ankle in Sunday's 38-17 win against the Las Vegas Raiders.
With 4:03 to play and the Niners holding a 21-point lead, San Francisco defensive end Keion White rolled into Halton's left foot and ankle. His ankle immediately buckled and he went to the ground in pain. Medical personnel brought the cart out and put an air cast on his ankle, and an emotional Halton rode to the locker room in tears.
Coach Kyle Shanahan confirmed after the game that Halton's season is over after eight games.
"He's played at a very high level as a rookie," Shanahan said. "We're going to miss him a lot and look forward to getting him back next year. I know the guys love him, too. He's an awesome guy."
Through eight games, Halton had emerged as one of the team's most promising rookies. A fourth-round pick out of Oklahoma, he started six games, posting 15 tackles, two sacks and five tackles for loss.
Halton had also become a favorite of his veteran teammates for his outgoing demeanor and enthusiasm on the field.
"He's a personality that kind of elevates everybody," end Nick Bosa said. "He brings that young energy to the room."
In addition to Halton, the Niners also finished Sunday's game without starting cornerbacks Deommodore Lenoir (foot) and Renardo Green (back). Green injured his back when he landed on it during a fourth-quarter interception; Lenoir hurt his foot near the end of the game.
Shanahan said the extent of those injuries is not yet clear as there will be more testing and monitoring in the next day or so.
"Hoping they're all right," Shanahan said. "It wasn't said that they were hurt for next week or anything, but we're not sure when it's a back and a foot. We've got to find out more tomorrow."
That information will be important for the Niners as they finalize plans ahead of Tuesday's NFL trade deadline.
San Francisco already dealt its 2027 fourth-round pick to the Colts for veteran defensive tackle DeForest Buckner, but it remains short-handed at receiver and cornerback. Halton's injury also muddies the picture on the defensive line, though C.J. West (knee) is also close to returning from injured reserve.
By the end of Sunday's game, the Niners had only two healthy cornerbacks -- Upton Stout and rookie Ephesians Prysock -- on the roster, though veteran Nate Hobbs (adductor) could return from injured reserve as soon as next week against the Dallas Cowboys.
At wideout, the 49ers welcomed back Demarcus Robinson on Sunday, and Deebo Samuel (hamstring) is nearing his return. Return dates for Mike Evans (Achilles) and De'Zhaun Stribling (ankle) are more uncertain.
Regardless, Shanahan said the team is taking a long look at ways to bolster the roster before Tuesday's 4 p.m. ET deadline.
"When it comes down to it, how many guys are really available?" Shanahan said. "How many teams go through with it? It's not like free agency, but we've already made one big [trade], and hopefully, there will be options, and those options will make sense for us. I know we're working hard at it."