While the Indianapolis Colts work out Andrew Luck today, the oppotunity to work out his chief rival, Robert Griffin III, won't happen.

According to owner Jim Irsay's Twitter feed, Griffin's representatives at CAA, declined the chance to have the Heisman Trophy winner work out for the Colts in a private session.

This leads to even more speculation that Luck will indeed be the Colts' choice to succeed Peyton Manning in Indianapolis. Given that CAA represented Manning and surely had a working knowledge of what the Colts' plans were as they released him and began their rebuilding process, perhaps Griffin's people felt it wasn't worth the time to send him there to work out if the Colts had already made up their mind that Luck was their guy. Or perhaps Griffin and his camp feel more comfortable with Mike Shanahan and the Washington Redskins, who traded up to have the second pick.

In any event, Luck and Griffin will forever be linked and compared for years to come as the top two picks in this year's draft.

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Terry McCormick covers the Titans for TitanInsider.com