Check out what #49ers DB Malik Mustapha had to say on Twitter after getting trucked on a touchdown run by #Chiefs QB Patrick ...

The Kansas City Chiefs kept their perfect season alive against the San Francisco 49ers on Sunday and provided fans with a t ...

San Francisco 49ers safety Malik Mustapha had two viral moments on Sunday. First came the big hit Mustapha took on ...

An all-too-familiar story played out for the San Francisco 49ers at Levi's Stadium on Sunday, as they once again wound up not ...

Patrick Mahomes led the Kansas City Chiefs to a 28-18 victory against the San Francisco 49ers, marking his first 6-0 start in ...

A 49ers team with Super Bowl aspirations is now 3-4 and banged up. Now's the time for Brock Purdy to take his game to another ...

But instead of knocking Mahomes backwards, Mustapha was trucked by the two-time MVP, who appeared to yell "weight room" in ...

Things didn't go to plan for the San Francisco 49ers in their highly-anticipated Super Bowl rematch against the Kansas City ...

The Chiefs have had to rely on their run game and defense to win games, but how can anyone discount the NFL's only undefeated ...

Mustapha recorded 12 tackles (six solo) during Sunday's 28-18 loss versus the Chiefs. Mustapha logged a career-high 67 defensive snaps in Week 7, and he had by far his most productive game as a pro ...

The last time Mahomes lowered his shoulder that way, he said, was against Iowa State when he was at Texas Tech — a 2016 game ...

The 49ers are no strangers to adversity, but the potential loss of Brandon Aiyuk to a season-ending ACL injury poses a ...