Rory McIlroy is scheduled to play a practice round Saturday at Whistling Straits in what appears to be a test run for his injured ankle in advance of next week’s PGA Championship, according to a report by Reuters, which cited a “reliable” source.

The world No. 1 has already ruled himself out of the WGC-Bridgestone Invitational but he has not yet announced his status for the year’s final major.

McIlroy said he ruptured a ligament in his left ankle while playing soccer with friends on July 4. The injury has already forced him to miss the Scottish Open, Open Championship and Bridgestone.

via Report: Rory McIlroy Planning PGA Championship Practice Round at Whistling Straits | Golf Channel.