Rory McIlroy lost the club head on his 9-iron and then lost the lead by going out of bounds on the last hole in shooting an eventful 5-under 67 in the first round of the BMW PGA Championship.

Rory McIlroy unintentionally accomplished something extremely rare on the golf course on Thursday: his 9-iron head broke off during a shot at the BMW PGA Championship.

After winning twice on the PGA Tour this season — at the RBC Canadian Open and Genesis Scottish Open — Scotland’s Robert MacIntyre is back on the DP World Tour, playing in the BMW PGA Championship at the Wentworth Club.