Rory McIlroy among top golfers struggling through treacherous Oakmont rough in opening round of US Open

All week long, golf fans have heard about the treacherous conditions that lurk at Oakmont Country Club for the 125th U.S. Open. 

Rory McIlroy was among those golfers who proved why the course is so tough in this third major of the season. 

The 2025 Masters champion was truly going through it at Oakmont during his Thursday round, and it came toward the end of what looked to be a great start for McIlroy. 

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McIlroy posted a front-nine 33, birdying his second and third holes while shooting par on the rest. However, the back nine was where things ...