A three-judge federal appellate panel indicated Friday it might overturn an injunction that allows 23XI Racing, co-owned by retired NBA great Michael Jordan and veteran driver Denny Hamlin, and Front Row Motorsports to race as chartered teams in NASCAR this season while the two teams sue the stock car series over alleged antitrust violations.

As NASCAR attempts to appeal the injunction awarded to 23XI Racing and Front Row Motorsports, the sanctioning body and race teams squared off again in the U.S. Court of Appeals in Richmond, VA on Friday,

Although Michael Jordan’s 23XI Racing team and Front Row Motorsports won a preliminary injunction in their antitrust lawsuit against NASCAR last December, it might not stand up to scrutiny on appeal.