Rory McIlroy appeared to raise his middle finger at American fans during the opening day of the Ryder Cup on Friday.
After an exceptional morning for Team Europe, who took a 3-1 lead after the foursomes action, things heated up in the afternoon.
The home support was expected to be rowdy and raucous at Bethpage Black, and US fans ramped up the noise as the day went on.
This led to a flashpoint in the fourth and final match of the afternoon where McIlroy and Shane Lowry were taking on Patrick Cantlay and Sam Burns.
The European pair were being heckled throughout and after they went two-up on the 11th hole, McIlroy was seemingly triggered by something that was said.
In a clip that has gone viral on social media, as he walked off the green alongside Lowry to significant crowd noise, it looked as if the Northern Irishman raised his middle finger towards fans.
Rory McIlroy appeared to raise his middle finger at American fans at the Ryder Cup on Friday
Within the video, McIlroy turned his head and raised his left hand, although some fans speculated as to whether he was waving to someone.
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