Novak Djokovic's coach Goran Ivanisevic said he always believed the Serb could hit top form in time to win the title at this year’s Roland-Garros.
Djokovic was struggling with an elbow injury at the start of the clay-court season and lost early in Monte-Carlo, Banja Luka and Rome.
But the 36-year-old played his best tennis when he needed to, completing his record 23rd Grand Slam title with a straight-sets victory over Casper Ruud on Sunday, putting him one ahead of Rafael Nadal, level with Serena Williams and one behind the overall leader, Margaret Court.