Tom Kowalski of MLive.com reports that there are fears within the Detroit Lions organization that quarterback Matthew Stafford will be lost for the remainder of the season with a right shoulder injury.

According to Kowalski, the initial diagnosis was a Grade 3 separation. Stafford underwent an MRI on Monday, and he's scheduled to visit with Dr. James Andrews. If the preliminary diagnosis is confirmed, another season for the first overall pick of the 2009 NFL Draft will end prematurely.

Stafford was placed on injured reserve in Week 16 of his rookie season with a right shoulder separation.

"I've got to talk some more with these doctors and kind of figure out what they're thinking," Stafford during his weekly Monday radio show. "It's kind of frustrating to be coming back and, two games later, be knocked out again. We'll take it day by day and figure out what the plan is."