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 does not back the effort by the players’ association co-founded by Novak Djokovic.

Carlos Alcaraz has said that he doesn’t support legal action launched by the Professional Tennis Players’ Association (PTPA) against the sport’s tours and governing bodies earlier this week.

Novak Djokovic's unexpected defeat at the Indian Wells ATP Masters by Botic van de Zandschulp was marked by 37 unforced errors. However, Carlos Alcara