Rory McIlroy has endured a tough week at Quail Hollow.

Riding high after sealing a career slam with victory at The Masters, McIlroy only just scraped through to the weekend by narrowly getting inside the cut.

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McIlroy has been struggling off the tee in North Carolina[/caption]

The Northern Irishman was forced to delay his third round after the weather saw play suspended just as he was about to tee off.

SiriusXM PGA Tour Radio also broke the news that McIlroy had to ditch his driver after it was found to be ‘non-conforming’ in random testing.

There were some unfounded accusations of cheating made on social media, which the PGA of America has moved swiftly to shut down.

“We can confirm that the USGA was invited to do club testing at the PGA Championship, at the PGA of America’s request,” said Chief Championships Officer Kerry Haigh via a statement.

“That testing program is consistent with the same level of support that the USGA provides to the PGA Tour and other championships, as part of their regular programs for driver testing.

“The standard process is for about a third of the field to be randomly tested under the program. That was the case at Quail Hollow this week.

“Finding driver heads that have crept over the line of conformance is not an unusual occurrence, especially for clubs that are hit thousands of times over a long period of time.

“The results are kept confidential to protect players, who are unaware the club has fallen out of conformance and not responsible for it falling out of conformance other than hitting the club thousands of times.

“Players are simply asked to change heads if necessary, and all do without issue.

“To publicly identify players whose club did not conform can lead to that player being questioned unnecessarily. Neither the USGA nor the PGA of America have any concerns about player intent.”

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McIlroy came crashing back to earth with a bump[/caption]

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