The USGA and PGA of America stayed true to its policy of not disclosing the names of players who failed this week's driver head test.

Rory McIlroy did not have the week he wanted at Quail Hollow. The 2025 PGA Championship co-favorite at 5-1 failed to factor into the conversation on the weekend, sputtering to a 3 over finish. That effort came after reportedly needing to rely in a new driver after his standard driver failed USGA driver testing earlier in the week.

Rory McIlroy's driver was reportedly deemed non-conforming earlier this week. And Schauffele told Golfweek he thinks Scheffler suffered the same fate.