Donald Brown's teammate Ryan Mathews (knee) is scheduled to undergo an MRI after exiting Sunday's game on a cart, ESPN's Adam Schefter reports.

Brown's teammate Ryan Mathews (knee) is scheduled to undergo an MRI after exiting Sunday's game on a cart, ESPN's Adam Schefter reports.

Analysis:

The Chargers reportedly fear that Mathews suffered a sprained MCL, an injury that typically requires a recovery period in the range of four weeks. Brown, who was previously getting only the occasional spare touch, will likely now work as the Chargers' lead back, though Danny Woodhead is still the go-to guy for obvious passing situations. With Brown's value almost entirely dependent on Mathews' health, prospective fantasy owners would be wise to keep a close eye on the injury.