Second seed Andy Murray defeated Davis Cup rival David Goffin 6-1, 6-0 on the indoor hard courts to reach the quarter-finals of the Paris Masters.
He will be playing French 10th seed Richard Gasquet next.
Belgium will host Britain in the Davis Cup final in Ghent, 3 weeks from now on 27-29 November.
Murray now has a 2-0 record against Goffin, but if they meet in Ghent it will be their first match on clay.
“Obviously clay is seen as being my worst surface, but I still feel like I play well on that court,” said Murray.
“I don’t know what speed the court’s going to be. If it’s quick, then I think that will help my serve a lot. If it’s slow, then I feel like I can track a lot of balls down on the clay, which is positive.
“But it was good for me to get the chance to play him before the Davis Cup and see his game and the speed of his shots and where he maybe makes some mistakes from and things that he likes to do.
“Obviously with the result, that’s a positive. I mean, mentally for me it’s a positive win.”