Oklahoma (US), May 20 : Indian star golfer Anirban Lahiri settled for three-over 73 in the opening round of the PGA Championship to leave himself in tied 78th position. Lahiri opened his day with a bogey and birdie on the 10th and 11th holes. He dropped a bogey on the fourth from the greenside bunker before taking a costly double bogey on the par-5 fifth hole after finding trouble in the greenside bunker. Rory Mcllroy of Northern Ireland led the field with a score of five-under 65.(UNI)