Rory McIlroy has openly admitted to shooting an 81 during a recent practice round at Oakmont, describing the course conditions as nearly impossible. With a history of struggling with his driver, he enters the U.S. Open under considerable pressure, especially following a disappointing performance where he missed the cut at the Canadian Open. Amid concerns about his form and motivation after a historic Masters victory, McIlroy acknowledges the need to get his game together as he prepares for the significant challenges that Oakmont poses. Speculation surrounds his recent driver changes as he attempts to regain his competitiveness in major tournaments.