Brandon Aiyuk's 2024 NFL season is over.
The 49ers wide receiver initially was feared to have suffered an ACL injury in the team's 28-18 loss to the Kansas City Chiefs on Sunday at Levi's Stadium, and coach Kyle Shanahan confirmed to Bay Area reporters in a conference call Monday that Aiyuk suffered both a torn ACL and MCL.
"I was told ACL, and there was the MCL in there, also," Shanahan said.
Stay in the game with the latest updates on your beloved Bay Area and California sports teams! Sign up here for our All Access Daily newsletter.
FOX Sports NFL insider Jordan Schultz first reported the news of Aiyuk's season-ending knee injury, and NFL Media's Ian Rapoport reported shortly after that Aiyuk suffered both a torn ACL and MCL in his right knee as well as potential additional damage to the area.
#49ers WR Brandon Aiyuk does, in fact, have a torn ACL and MCL, per sources after the MRI. There may be other damage.
— Ian Rapoport (@RapSheet) October 21, 2024
His season is over, with a long road back for 2025. This is what coach Kyle Shanahan and SF believed following the game. pic.twitter.com/Ju5nxlgDLC
Aiyuk's 2024 campaign got off to a slow start after he signed a four-year, $120 million contract days before the season, and now he likely will be sidelined into the 2025 season.
After hauling in 75 receptions for a career-high 1,342 receiving yards and seven touchdowns as San Francisco's leading receiver in 2023, Aiyuk caught 47 passes for 374 yards and zero touchdowns in seven games this season before suffering the injury in the second quarter of Sunday's game.
San Francisco 49ers
Find the latest San Francisco 49ers news, highlights, analysis and more with NBC Sports Bay Area and California.
The 49ers, already without All-Pro running back Christian McCaffrey, who continues to work his way back from Achilles tendinitis, will be without another one of their elite weapons. However, in Aiyuk's case, for much longer.