Stefanos Tsitsipas will meet Dominic Thiem in Sunday’s showpiece to decide who will be crowned winner of the 2019 ATP Finals.
The 21-year-old beat Roger Federer in straight sets in the first semi-final on Saturday, clinching a 6-3, 6-4 success over the six-time champion after a ruthless display.
Tsitsipas, making his debut in the Finals, will face Thiem next after the Austrian came through his semi-final against Alexander Zverev.
Zverev won the tournament last year after beating Novak Djokovic in the final but faced a difficult test against Thiem, who had defeated both Djokovic and Federer in Group Bjorn Borg.
It is scheduled to start not before 6pm GMT, with the doubles final due to be played in the afternoon session.