According to the search results, Rory McIlroy and caddie Jim "Bones" Mackay had a heated exchange in the parking lot of the Marco Simone golf course after the conclusion of play on Day 2 of the Ryder Cup. The incident occurred after American player Patrick Cantlay made a 43-foot birdie putt on the final hole, prompting American players and caddies, including Cantlays caddie Joe LaCava, to take off their hats and whirl them around their heads in a mock celebration of what fans had been doing to Cantlay around every tee and green. McIlroy took exception to LaCavas behavior and subsequently missed his putt. Several minutes later, he was seen in the parking lot screaming profanities in the direction of Mackay, who caddies for Justin Thomas. McIlroy later apologized to Mackay, saying that the incident "still hurts".