The CEO of the USGA, Mike Whan, has played down the controversy of driver testing at the PGA Championship, when it was reported that Rory McIlroy had to change his driver beforehand as it had become non-conforming.
The furore around the report led to the PGA of America releasing a statement confirming that it had requested the USGA carry out club testing, which had been confidential, before the tournament began.
