USC QB Matt Barkley may have a separated right shoulder (photo)

USC QB Matt Barkley had trouble today with the UCLA defense, throwing two interceptions, but the breaking news from Scott Wolf of the Los Angeles Daily News said Barkley, who left the game late in the fourth quarter, had his arm in a sling after the game.

Is this another tough blow to the Trojans and the pre-season Heisman favorite.  How will this impact the game vs. Notre Dame next year, especially on Senior Day for Barkley?