Published Sunday, 31 August 2014
Rory McIlroy during round two of the Deutsche Bank Championship in Boston. (© Getty)
The PGA Championship and Open Championship winner improved his first-round score by one shot with 69 on a scorecard including three birdies and a bogey on the front nine.
However, a double bogey on the 14th set him back before he ended the round with two further birdies.
The Co Down man sits one shot ahead of England's Ian Poulter, who struggled after his opening round 67 as he carded a 73 which included a triple bogey on the 16th hole and a double bogey on the 1st - among five birdies and two bogeys - to drop back in the field.
Meanwhile, at the top of the leaderboard is Australia's Jason Day, who takes joint place with overnight leader Ryan Palmer.
The 26-year-old, in search of his third PGA Tour triumph, carded a 68 to add to his opening 66 in Boston to move into a one-shot lead with Palmer on eight under par.
Day recorded a flawless front nine where he claimed five birdies, but his back nine let him down and he could have taken the outright lead at the halfway stage had he not suffered with bogeys on the 12th, 14th and 18th holes to go three-under for the round.
American Palmer also endured a mixed round and a double bogey on the second could have meant trouble, but he claimed five birdies among three bogeys to finish level on par and in the lead for the second day.
© UTV News