Andy Murray beat Ugo Humbert 3-6, 7-5, 6-2 to reach his first ATP final for two years.
Murray had to come back from losing the first set and did well as he made it to the European Open final.
He will take on three-time Grand Slam winner Stan Wawrinka in the Belgium showpiece.
Frenchman Hubert was dogged throughout and hit some brilliant shots but a resilient Murray rallied to snatch victory.
Murray is making his first appearance in a final since the Dubai Championships in March 2017.
But back then, Murray was the world number one and hadn’t had a hip operation – a surgery which nearly retired the Brit.
Murray showed a bit of fatigue in the first set and looked a frustrated figure as Hubert took the first stanza 6-3.
Humbert took the first set after hitting an ace, in keeping with his aggressive play.