LB Campbell quits on 49ers during loss to Rams

De’Vondre Campbell did not want to play football on Thursday night, so he told 49ers coach Kyle Shanahan how he felt, then left Levi’s Stadium.

Shanahan was asked in his postgame media session why Campbell went to the locker room in the third quarter of the 49ers’ 12-6 loss to the Rams.

“Yeah, he said he didn’t want to play today,” Shanahan said.

Shanahan told reporters that he asked Campbell if he wanted to go into the game in the third quarter to spell returning starter Dre Greenlaw...