Top-ranked Roger Federer and six-time champion Andre Agassi set up tonight's semifinal showdown (7 p.m., ESPN2) at the Nasdaq-100 Open.
Federer, bidding for his first Key Biscayne title, beat No. 6 Tim Henman, 6-4, 6-2, on Thursday. Six-time champion Agassi, seeded ninth, won the final eight games to defeat Taylor Dent, 7-5, 6-0.
Federer has beaten Agassi six times in a row and eliminated him at the past two Grand Slam events.
The other semifinal (3 p.m., ESPN2) will be an all-Spanish matchup between David Ferrer and No. 29 Rafael Nadal.
Federer erased the only break point he faced and countered Henman's serve-and-volley tactics by winning 18 of 21 points at the net. Federer extended his winning streak to 20 matches and improved to 46-1 since the start of last year's U.S. Open.
He's trying to win his fourth tournament in a row.
"As the No. 1 in the world, you just don't want to give away victories to the other guys," he said. "Then they can say, 'I beat the No. 1 player in the world.' At least you want to make it tough for them. This is the motivation I have."
Agassi, at 34 the oldest player in the tournament, is two wins from his 60th title and first since October. He has lost six sets in a row to Federer.
"I'll have to really step it up Friday, that's for sure," Agassi said. "Seeing his form over the last year and a half, I'd say I'd have to be doing a lot of things well."
With Dent hampered by a sore ankle in the second set, Agassi pulled away and finished with 24 winners to just seven unforced errors.
"If anybody can beat Roger," Dent said, "Andre can."