He tees off his opening round at the PGA Championship at 1:40pm (Irish Time).
Rory McIlroy begins his quest for a seventh major title later today.
The back-to-back Masters champion tees off his opening round at the PGA Championship at 1:40 Irish Time.
McIlroy admits his mindset was very different after completing the sport's grand slam 12-months ago.
Shane Lowry is in the later groupings today, and gets his campaign up and running just after 6:30pm.
Tom McKibbin is out on course at 12:40pm, with Padraig Harrington teeing off at around 1:25pm in Pennsylvania.

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