SANTA CLARA >> De’Vondre Campbell’s expulsion from the 49ers has come via an unpaid suspension for their final three games.

That discipline was announced Monday in a two-line statement from general manager John Lynch, as the 49ers (6-8) reconvened after Thursday’s dramatic 12-6 loss to the Los Angeles Rams in which Campbell refused to come off the bench and play a single snap.

Prior to kickoff, defensive end Nick Bosa sensed something was amiss.

“In the locker room before the game, I heard some complaining, and I was going to say something,” Bosa recalled Monday. “I didn’t because I didn’t want to create more of a distraction, but I kind of felt it. Yeah, I kind of saw the foreshadowing and I definitely didn’t think it was going to result in that.”

Bosa and other teammates were stunned to learn after the game of Campbell’s actions and still undisclosed motive. Campbell walked to the locker room early in the fourth quarter, after he refused to fill in for a shorthanded linebacker unit in the wake of injuries to Dre Greenlaw (knee, Achilles) and Dee Winters (neck).

“That’s crazy to quit on your team while they’re at battle. I’d never be a part of that,” cornerback Deommodore Lenoir said. “I have too much love for the game, too much pride to tell a coach I’m not going in a game. For him to do that, I just lost all respect.”

Campbell arrived as a respected, nine-year veteran who made All-Pro in 2021 with the Green Bay Packers. He has not commented publicly since going rogue Thursday.

By suspending him, the 49ers will avoid paying him $261,666 in salary and per-game bonuses, and they can try recouping $111,666 of his $3.35 million signing bonus for games missed, according to spotrac.com.

“We have suspended De’Vondre Campbell Sr. for three games due to conduct detrimental to the team. We will have no further comment on the matter,” Lynch’s statement read.

By the 49ers not releasing him or terminating his contract, Campbell cannot join another team, if the 31-year-old wanted to extend his career. “I’m sure he’s going to have a hard time finding somewhere else to go when you act like that,” Bosa added.

The 49ers resumed practicing Monday ahead of Sunday’s penultimate road game at the Miami Dolphins. Neither coach Kyle Shanahan nor Lynch spoke to the media.

Campbell’s situation appears more of an outlier than a signal of a fed-up locker room.

“This locker room is great. It’s always been great,” Bosa said. “But sometimes when you bring somebody who’s older in from a different place, you don’t know. He’s a good dude; it’s not like I didn’t like him. But, no, there are no issues in this locker room; very rarely.”

Lenoir said the 49ers welcomed Campbell “with open arms,” adding: “We used to be in the sauna after practice. Me talking to him, I never thought he’d quit.”

Campbell’s locker was cleared out, his nameplate removed, and no signs of his existence remained along that wall.