Novak Djokovic set up a potential Olympic Games blockbuster with Rafael Nadal on Saturday as French Open champions Carlos Alcaraz and Iga Swiatek made winning returns to a rain-swept Roland Garros. Djokovic, chasing a first Olympic gold to add to his 24 Grand Slams, brushed aside Australia’s Matthew Ebden 6-0, 6-1 in just 53 minutes