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Rory McIlroy is tied for the lead on 8-under 64 after the first round of the PGA Tour's BMW Championship in Indianapolis.
Canada's Graham DeLaet, American Bo Van Pelt and US Open champ Webb Simpson shot the same number.
McIlroy's playing partner Tiger Woods is a stroke back after shooting a seven-under 65 - as did Fijian Vijay Singh.
Louis Oosthuizen and Ernie Els opened with 4-under 68s and Charl Schwartzel with a 69.
