According to the search results, Rory McIlroy was involved in a heated argument with Patrick Cantlays caddie, Joe LaCava, during the Ryder Cup on September 30, 2023. The incident occurred on the 18th green after Cantlay had made a 43-foot birdie putt to win the match against McIlroy and Matt Fitzpatrick. LaCava was waving his hat while celebrating Cantlays putt, which upset McIlroy as he was preparing to attempt a putt to tie the hole. McIlroy became angry and shouted at LaCava, pointing his finger and lurching towards him. The argument continued in the car park, where McIlroy was seen shouting at Justin Thomas caddie, Jim "Bones" Mackay. McIlroy was reportedly upset with Mackay for an incident that occurred on the 18th hole, which is presumed to be related to LaCavas behavior. The argument was caught on camera, and McIlroy was restrained by his teammates and security personnel. McIlroy denied a report that he met with LaCava to clear the air on Sunday, but he did say that they had been in contact via text message and that "everything will be fine".