08/12/2011 09:52 EDT | Updated 10/12/2011 05:12 EDT

US Open champ Rory McIlroy returns for 2nd round with taped wrist

JOHNS CREEK, Ga. - Rory McIlroy has teed off in the second round of the PGA Championship with a heavily taped right wrist.

The U.S. Open champion injured his wrist while taking an ill-advised swing in the opening round, striking his ball when it was against a thick tree root.

McIlroy had an MRI, which showed a strained tendon. He decided to play Friday after testing his wrist on the driving range.

Playing in a group with two other major champions, Masters winner Charl Schwartzel and British Open winner Darren Clarke, McIlroy made a three-putt bogey at the opening hole.