The separated shoulder USC quarterback Matt Barkley suffered last season will prevent him from throwing at this week's scouting combine in Indianapolis.

Barkley "will be attending the upcoming scouting combine in Indianapolis, but he will not be throwing or participating in any on-field testing components while there," his agents said in a statement sent to NFL teams Monday.

Teams wanted to watch Barkley throw to help determine whether he would be the top quarterback selected in April's draft. They -- and the pecking order for quarterbacks in this draft -- now will have to wait.