Gilles Simon and Jo-Wilfried Tsonga will square off in an all-French final at the Moselle Open for the second time in three years.
Simon, the second seed, is bidding for a third Metz crown after beating Martin Klizan 6-4 6-4 on Saturday.
He converted four of six break points while saving eight of 10 against him during the one-hour-and-37-minute battle.
"It's great to be in the final in Metz," said Simon. "I have a lot of memories. It's one of my most successful tournaments. Every time I won it, I had a child in the month before. My wife and my son being here in 2013 and lifting the trophy in front of them was a nice memory."
Awaiting him in the final is third seed Tsonga, who fired 13 aces en route to a 6-3 6-4 victory over Philipp Kohlschreiber.
The Frenchman hit 34 winners to wrap up the contest in just 69 minutes.
Moth players are also seeking to improve their standing in the ATP Race To London – Simon currently sits in 14th position, with Tsonga one spot behind.