Here's how Rory McIlroy is doing so far at the USPGA

American Ryder Cup player Jimmy Walker is leading the way.

Roory McIlroy faced an uphill battle to maintain his brilliant record in the US PGA Championship after getting off to a poor start at Baltusrol on Thursday.

McIlroy lifted the Wanamaker Trophy in 2012 and 2014 and has recorded three other top-eight finishes in seven appearances in the final major of the year.