'Snag' in Carson Palmer trade between Cards-Raiders?

The trade that will send quarterback Carson Palmer from the Oakland Raiders to the Arizona Cardinals has not been completed.

A Monday night report from CBSSports.com's Jason La Canfora casts some doubt on the situation.

"Carson Palmer trade not finalized. Things "hit a snag" according to a source. Unsure if it can be overcome at this point ..."

In a subsequent tweet, La Canfora wrote that Oakland and Arizona are working on a restructured salary for Palmer, adding that both sides are "pushing towards a deal."

Palmer still is on the books for $13 million with the Raiders this season. If he's insistent on being paid anywhere near that figure, that could explain the "snag."

Palmer would represent a substantial upgrade at the quarterback position in Arizona, but it's been some time since he's been a player worth his current salary.