, I just need to go out there and shoot a score . '' World No . 1 Rory McIlroy toils on the opening day of the BMW PGA Championship . The world No2 is in contention for a place at Valhalla Luke Donald can usurp McIlroy 's top ranking this week and he sits on four-under . David Drysdale and Peter Lawrie lead after the first day on six-under .
World No . 1 Rory McIlroy toils on the opening day of the BMW PGA Championship . The world No2 is in contention for a place at Valhalla Luke Donald can usurp McIlroy 's top ranking this week and he sits on four-under . David Drysdale and Peter Lawrie lead after the first day on six-under .