Rory McIlroy follows through on 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 lofts a chip onto the putting surface 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).

Tiger Woods 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).