Rib injury forces Casey to withdraw

NORTON, Mass. -- Paul Casey has withdrawn from the Deutsche Bank Championship because of a rib injury that has kept the world's No. 3 player out of golf for the last month.

Casey withdrew Wednesday after hitting nothing more than a sand wedge on the practice range at the TPC Boston.

He had an MRI after withdrawing from the PGA Championship last month that showed a tear of an oblique and a strain of an intercostal muscle. Casey had a cortisone shot, although he was worried about making the injury worse and not being able to feel it.

He is No. 27 in the FedEx Cup standings, making him a virtual lock to advance next week if he can play. Casey is also No. 2 in the Race to Dubai on the European Tour.