Dave Portnoy's 'Gruden Rule' Sparks Drama at Internet Invitational

Dave Portnoy's "Gruden Rule" has sparked controversy at the Internet Invitational, a golf event organized by the Barstool Sports founder. The rule, which pertains to former NFL coach Jon Gruden's participation, became a focal point of drama during the tournament. Gruden, who served as head coach for the Oakland Raiders and Tampa Bay Buccaneers, was seen playing a shot during the Valspar Championship pro-am at Innisbrook Resort and Golf Club in Palm Harbor, Florida, on March 18, 2026. The incident has drawn attention to the intersection of professional football and golf in Portnoy's invitational series.