Novak Djokovic keeps French Open title defense alive after battling back to beat Lorenzo Musetti in record 3am finish at Roland Garros

Novak Djokovic ´s French Open title defense - and his hold on No 1 in the rankings - are still alive thanks to a 7-5, 6-7 (6), 2-6, 6-3, 6-0 comeback victory over 22-year-old Italian Lorenzo Musetti.