Americans Mardy Fish and John Isner both won their semi-finals to set up rematch of last year's title match at the Atlanta Open on Saturday.
Top seed and defending champion Fish easily advanced past his promising 19-year-old compatriot Ryan Harrison 6-2 6-4 in their last four encounter.
Fish, who did not drop serve while breaking Harrison on three occasions in a match that lasted just one hour and 19 minutes, said he was expecting a tough challenge from Isner on Sunday.
"I'll have to play as well as I can," he told reporters. "He showed last year that he's a tough out here. No one's beaten him here yet this year. He'll be tough. I'll come up with a game plan that will hopefully give him some trouble."
Big-serving Isner prevailed over Luxembourg's Gilles Muller 7-5 6-7 6-1 in the other semi-final, firing down 28 aces In the process.
After dropping the second set tie-breaker to close out the match, Isner seized control by winning the first five games of the third set.
"I worked hard in the second set to win that set, and then at the beginning (of the third) I throw all my chances away," said Muller. "It was hard to take."
Isner will be attempting to win his second straight tournament, having won the Newport Open two weeks ago.
"I've been waiting on this feeling for about four to five months," said Isner. "Now that I have it, I don't want to let it go."