McIlroy: 'Patience was wearing thin' after frustrating round

“Physically I am all right, but mentally I could feel myself getting a little angry out there.”

World number one Rory McIlroy admitted his patience was tested by a frustrating opening round in the defence of his BMW PGA Championship title on Thursday.

McIlroy was among the early starters at Wentworth as he looked to claim a third win in four events, having followed his victory in the WGC-Cadillac Match Play with a third consecutive top-10 finish in the Players Championship and a seven-shot triumph at Quail Hollow on Sunday.