Arrowhead High School won the state football championship on the field in 2025, but the title could be stripped away in court. The parents of Arrowhead student Tristen Seidl are asking a Waukesha County judge to make a temporary injunction permanent an injunction that allowed Seidl to play football during the 2025 season despite a Wisconsin Interscholastic Athletic Association eligibility ruling against him.Watch: Arrowhead High School's 2025 st…