Redskins' Keith Marshall: Expected to miss three weeks

An MRI exam revealed that Marshall (elbow) could miss up to three weeks, Chick Hernandez of CSN Washington reports.

The team has yet to comment on Marshall's status heading into the final week of the preseason, but it is expected he will be evaluated in roughly three weeks. The injury comes as the rookie is attempting to secure a spot in Washington's backfield among the likes of Rob Kelley and Mack Brown. Look for more updates to come as Thursday's preseason finale against the Buccaneers nears.