Novak Djokovic made a huge leap towards a record 23rd men's Grand Slam title with a 6-3 5-7 6-1 6-1 victory against an ailing Carlos Alcaraz in the French Open semi-finals on Friday.
World number one Alcaraz had just levelled the contest when disaster struck as he limped to his bench holding his right leg at 1-1 in the third set.
While he continued playing, the US Open champion was clearly hampered but Djokovic was merciless, dropping only one of 12 games to book a spot for Sunday's showdown against either last year's runner-up Casper Ruud or German Alexander Zverev.
It was unclear whether Alcaraz, who skipped this year's Australian Open because of a hamstring injury, was suffering from cramps or injured.
Slow start, strong finish as Alcaraz makes US Open third round
Dominant Sabalenka sweeps past Iatcenko to reach US Open third round
F1 champion Norris co-founds single-seater junior team
Pegula, Paolini ease into US Open third round
All-Star Sumo Competition to take place in Abu Dhabi for first time
