Ernie Els hits his tee ball on 11 during first round action at the BMW Championship at Crooked Stick CC in Carmel Indiana on Thursday Sept. 6, 2012. (Charles Cherney/WGA)

Nick Watney watches a tee shot during the second round of play on Friday, September 7, 2012 at the BMW Championship at Crooked Stick Golf Club in Carmel, IN (Rick Sanchez/WGA).

Rory McIlroy stares down a tee shot during the second round of play on Friday, September 7, 2012 at the BMW Championship at Crooked Stick Golf Club in Carmel, IN (Rick Sanchez/WGA).