NFL Network’s Ian Rapoport reports 49ers FB Kyle Juszczyk is believed to have suffered a sprained knee in Week 4’s win over the Broncos.

05 October 2026

This would be very good news for Juszczyk, as the injury appeared far worse in real time. According to Rap, the team believes Juszczyk’s ACL is believed to be intact, but he will undergo an MRI to confirm. The veteran fullback is still likely looking at a multi-week absence, which could impact Christian McCaffrey’s effectiveness in the running game, but it sounds like he avoided the worst here.