GLENDALE, Ariz. (AP) Probably no Arizona Cardinals player understands the importance of a successful running game better than quarterback Carson Palmer does.

Palmer's big play-action shots downfield won't work if the defense doesn't have to worry about the run, and the Cardinals' average of 3.3 yards per carry last season ranked dead last in the league.

So Palmer more than welcomed the signing this week of running back Chris Johnson.

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In his weekly session with reporters, Palmer said it's further evidence coach Bruce Arians has put a huge emphasis on improving the running game

He said the addition of a significant player late in camp is ''pretty typical'' of the Cardinals. Palmer said it's obvious Arizona has become a preferred destination for NFL players.

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