Facts and figures ahead of Friday's Australian Open men's semi-finals (x denotes seeding):

Stefanos Tsitsipas (GRE x3) v Karen Khachanov (RUS x18)

Head-to-head: Tsitsipas leads 5-0

Fast facts

Stefanos Tsitsipas

Age: 24

World ranking: 4

Prize money: $23,655,204

Career titles: 9

Grand Slam titles: 0

Australian Open best: Semi-finals (2019, 2021, 2022)

Coach: Apostolos Tsitsipas

Path to the semi-final:

1st rd: bt Quentin Halys (FRA) 6-3, 6-4, 7-6 (8/6)

2nd rd: bt Rinky Hijikata (AUS) 6-3, 6-0, 6-2

3rd rd: bt Tallon Griekspoor (NED) 6-2, 7-6 (7/5), 6-3

4th rd: bt Jannik Sinner (ITA x15) 6-4, 6-4, 3-6, 4-6, 6-3

Quarter-final: bt Jiri Lehecka (CZE) 6-3, 7-6 (7/2), 6-4

Karen Khachanov

Age: 26

World ranking: 20

Prize money: $12,265034

Career titles: 4

Grand Slam titles: 0

Australian Open best: Semi-finals (2023)

Coach: Jose Clavet and Vedran Martic

Path to the semi-final:

1st rd: bt Bernabe Zapata Miralles (ESP) 7-6 (7/3), 6-2, 6-0

2nd rd: bt Jason Kubler (AUS) 6-4, 5-7, 6-4, 6-2

3rd rd: bt Frances Tiafoe (USA x16) 6-3, 6-4, 3-6, 7-6 (11/9)

4th rd: bt Yoshihito Nishioka (JPN x31) 6-0, 6-0, 7-6 (7/4)

Quarter-final: bt Sebastian Korda (USA x29) 7-6 (7/5), 6-3, 3-0 ret