ainly stings, though it is not a huge surprise. But on Monday morning, 49ers coach Kyle Shanahan revealed that safety Talanoa Hufanga doesThis cert, in fact, have a torn ACL in his right knee, suffered during San Francisco’s Week 11 win over the Buccaneers on Sunday.

Hufanga, in his third season, was coming off of Pro Bowl and All-Pro selections last year, and will miss the remainder of the year as he undergoes surgery and tries to get ready for next season.

“The guys from last night, got confirmed with Huff (Talanoa Hufanga) this morning. He does have a torn ACL. They don’t think there was any meniscus or anything, so it was as clean as it could be for just being ACL,” Shanahan said at his Monday presser.

While it is not easy to lose a player of Hufanga’s caliber, it does ease the blow somewhat that one of the stars of Sunday’s win over Tampa Bay was rookie safety Ji’Ayir Brown, who has three passes defended against the Bucs, and added the fourth-quarter interception that sealed the 49ers win.

It will not be fair, of course, to expect Brown to fully replace a player like Hufanga, who recorded four interceptions and two sacks last season. But Shanahan, and others on the team, were impressed by what they’ve seen from Brown, both in practices and in the game on Sunday. He was a third-round pick from Penn State but had not seen the field much in the 49ers’ first nine games, during which he mostly played special teams.

Brown had played 30 defensive snaps all season, but played 36 on Sunday. It will be a big opportunity for him down the stretch of the season, though it remains to be seen whether the 49ers attempt to sign anyone to the roster to replace Talanoa Hufanga, or if they’ll move forward with Brown.