49ers rookie defensive tackle Gracen Halton broke his left ankle in the fourth quarter of Sunday's 38-17 win over the Las Vegas Raiders at Levi's Stadium, and coach Kyle Shanahan said the injury ends his season.
Medical staff put a vacuum splint on Halton's left leg with 3:57 left, and he was carted off, Pro Football Talk reported. The injury happened when teammate Keion White rolled over him while he was blocking, NBC Sports Bay Area reported.
"I'm praying, hoping, thinking for Gracen," linebacker Fred Warner told NBC Sports Bay Area. "I'm sick for him."
His rookie year
The fourth-round pick from Oklahoma started six of seven games before Sunday and had 15 tackles, two sacks and a forced fumble, plus a fumble-return touchdown in the Week 5 win at Seattle, according to NBC Sports Bay Area.
More injuries
San Francisco already has Alfred Collins, Andrew Farmer II, C.J. West, Mikail Kamara and Sam Okuayinonu on injured reserve on the defensive line, PFT noted. Starting cornerbacks Deommodore Lenoir (foot) and Renardo Green (back) also left Sunday's game and did not return.
What's next: The 49ers play at the Dallas Cowboys on Sunday, Nov. 15.
Related: 49ers beat Raiders 38-17 and 49ers at the trade deadline.