While Sunday ended up being a bad day for his team, things could have been even worse for Packers cornerback Sam Shields.

He exited in pain during the 49ers’ opening offensive drive after a teammate fell on Shields’ leg during an effort to tackle San Francisco receiver Michael Crabtree.

Believed to be an MCL strain, an MRI exam reveals that Shields suffered only a bone bruise. And that’s great news for Shields, given that he’s due to become a free agent in March.

Shields started 14 regular-season games in 2013, missing two with a hamstring injury.