McLaren Racing is suing IndyCar champion Alex Palou for at least $23 million to recoup costs the team says it lost when the driver reneged on the contract he signed to join the team,

Palou, a 26-year-old Spaniard, guaranteed that he had “no outstanding obligation under any contract or agreement” that would keep him from joining McLaren after the IndyCar season ended, according to the Sept. 29 filing in the High Court of Justice Business and Property Courts of England and Wales Commercial Court. The Associated Press viewed the 17-page filing Tuesday.

The lawsuit is the latest twist in an ugly spat involving the talented young driver and two teams: McLaren, which in July 2022 said it had signed Palou and had him earmarked for an IndyCar seat and a reserve driver role with its Formula One team, and Chip Ganassi Racing, which said it had the contractual rights for Palou for the 2023 season.

Palou and Ganassi entered mediation and a resolution was reached a year ago in which Palou would drive for Ganassi in 2023 but could do F1 work for McLaren when it did not interfere with IndyCar. He was able to participate in a practice session last season for McLaren, tested for the F1 team both on track and in a simulator, and was the reserve driver for McLaren at F1’s Miami Grand Prix in May.

However, McLaren Racing CEO Zak Brown was contacted Aug. 8 and told Palou would not be joining McLaren. The filing says attorneys told Brown that Palou had signed a three-year extension with Ganassi, where he won the 2021 and 2023 championships, through 2026.