Novak Djokovic will be facing Roger Federer in the semi-final.
Federer beats the home favorite Gael Monfils 6-4, 6-3, 7-6 (7/3) in a low-quality quarter-final match on Tuesday while Djokovic’s quarter final opponent, Italy’s Fabio Fognini, withdrew through injury.
Former world number one Federer, the 2009 champion, has made steady progress in the tournament to date and is yet to lose a set.
The 16-time Grand Slam winner, who lost in the last eight last year following four straight final appearances, faces Djokovic.
Djokovic, however, has beaten the great Swiss in their three previous encounters and requires just one more victory to level John McEnroe’s 1984 record of 42 matches unbeaten at the start of a season.
A victory on Friday will also crown the Serb as the new world number one.