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Clara man bogeys' 18th
Shane Lowry leads the Irish challenge on the first day of golf's BMW PGA Championship.
The Open winner has signed for a level-par round of 71 after a bogey on the signature 18th hole at Wentworth.
FedEx Cup champion Rory McIlroy dropped three shots on the last two holes in a four-over opening round.
Henrik Stenson is the clubhouse leader at six-under-par.
Europe's Ryder Cup captain Padraig Harrington is one-over par into day two.