Rory McIlroy narrows gap behind Adam Scott at BMW Championship

Rory McIlroy on the third tee during the first round of the BMW Championship in Wilmington, Del. 

Rory McIlroy lies just two shots off the pace at the halfway stage of the BMW Championship following a late blunder by Australian Adam Scott.

Scott enjoyed a three-shot lead until making a double bogey on the 17th which left the top 32 players separated by just five shots on a top-quality leaderboard.