Though coach Jeff Fisher said on Sunday that he didn’t believe quarterback Vince Young’s sprained left knee is serious, Adam Schefter of NFL Network reports that Young has a torn MCL, and that he is expected to miss two-to-four weeks.

Young will undergo an MRI on Monday to confirm the initial diagnosis.

A torn MCL doesn’t require surgery unless it’s completely torn.  Otherwise, the ligament can heal on its own.

Schefter also reports that the Titans have contacted free-agent Chris Simms.