XM Sirius PGA Tour Radio is reporting Rory McIlroy's driver was deemed to be nonconforming at the PGA Championship.

McIlroy’s driver was reportedly ruled non-conforming on Tuesday at the PGA Championship, and three days later McIlroy had hit just 10 fairways through 36 holes.

Vegas cruised through the back nine at muggy Quail Hollow and was 10-under par until he missed a 3-foot putt on 18 and ended an otherwise splendid day with a double bogey for a 1-under-par 70, giving

The PGA Championship leaderboard features a mix of unknowns and former major winners. Jhonattan Vegas held on to his 18-hole lead with a one-under 70 during the second round at Quail Hollow Club. Vegas sits two shots ahead of Matt Fitzpatrick, Matthieu Pavon and Si Woo Kim.

Jhonattan Vegas was in front for first time in a major and didn’t back down Friday in a PGA Championship filled with drama everywhere but the top of the leaderboard. Looming large amid an eclectic mix of contenders was Scottie Scheffler,