Four-time Grand Slam champion Carlos Alcaraz says he was unaware there would be a class-action lawsuit filed in U.S. federal court against some of the groups that run tennis and made clear that he doe

The tennis players’ association that was co-founded by Novak Djokovic has filed multiple lawsuits around the world against the sport’s tours and governing bodies.

Tennis normally happens on court, Novak Djokovic and Nick Kyrgios are seeking to shift the action to in court. The player organisation set up by Djokovic and Canada’s Vasek Pospisil, supported by Kyrgios, has launched legal action against tennis’ governing bodies.