Rory McIlroy forced to change driver after breaking little-known rule
Rory McIlroy in action at the PGA Championship (Getty Images)
Northern Irish golfer Rory McIlroy's driver was found to be non-conforming during standard United States Golf Association testing at the PGA Championship.
This forced McIlroy to use a replacement driver, potentially affecting his performance in the first round.
PGA officials said that finding non-conforming drivers is not unusual due to wear and tear from repeated use.
They said that there are no concerns about “player intent” and that players are typically asked to switch clubs without issue.
This incident echoes a similar situation with Xander Schauffele at the 2019 Open Championship.