WASHINGTON – Rory McIlroy said a lesson with veteran instructor Butch Harmon was a “really worthwhile trip” as he prepares for next week’s Masters and another chance to complete a career Grand Slam.

The 34-year-old Northern Irishman spoke about his visit to see the former coach of Tiger Woods on April 3, the eve of the opening round of his final Masters tune-up, the Texas Open at TPC San Antonio.