Rory McIlroy was “p----d off” at the US PGA Championship last month after the news that his driver failed testing was leaked, while world No 1’s Scottie Scheffler’s same result stayed private.

It was a strange week for McIlroy, who arrived at the PGA as the most celebrated player in golf after he completed the career Grand Slam.

Rory McIlroy admitted Wednesday that he was “pissed off” that his name had leaked after what was supposed to be confidential driver testing ahead of the PGA Championship.