Roger Federer is in his 15th career final in Switzerland after a 6-4 6-4 win over Stefanos Tsitsipas.
Federer, who had the benefit of a two-day break, started the attacking game from the outset, opening five break-point chances before finally making the break when Tsitsipas scored a backhand to lead 3-2.
The Swiss was majestic in his service games and sealed the first set 6-4 before breaking Tsitsipas again in the opening game of the second set.
The 38-year-old then activated the style by overcoming Tsitsipas and, after saving a stopping point while serving in the match, ended the match with a forehand winner to record his 50th win of the season and his 23rd consecutive win in Basel. .
Federer will play against Australian Alex de Minaur in Sunday's final while seeking his tenth title in Basel.
ROGER FEDERER VS STEFANOS TSITSIPAS HOW IT HAPPENED
SECOND SET (* indicates server)
* FEDERER 6-4 6-4 TSITSIPAS
Tsitsipas Return Winner, 0-15. Big Federer serves, 15-15. Federer's double failure, 15-30. Federer ace, 30 in all.
Federer's backhand cuts the net and falls sideways, Tsitsipas. Tsitsipas forehand is long, draw.
Tsitsipas wide forehand, match point. Federer wins the forehand. GAMES. SET. GAME FEDERATOR!
ERDF 6-4 5-4 TSITSIPAS *
136 km / h, Federer forehand winner by 0-15. Tsitsipas's strong response to retaliate and force Federer to serve the match.
* FEDERER 6-4 5-3 TSITSIPAS
Good start from Tsitsipas, which opens with a forehand winner, 0-15. Good second Federer, 30-15. Then a big first serve, 40-15.
And great positioning keeps Federer from a game of victory.
ERDF 6-4 4-3 TSITSIPAS *
Tsitsipas lowers to 40-0 and closes the game with an ace.
* FEDERER 6-4 4-2 TSITSIPAS
Flash and you miss it. Federer keeps the love back in about a minute!
ERDF 6-4 3-2 TSITSIPAS *
Nothing wrong with this Tsitsipas service game, but he's still playing. Can he find a way to stop Federer's service?
* FEDERER 6-4 3-1 TSITSIPAS
Federer runs through another service game. He was irrepressible this afternoon.
FEDERER 6-4 2-1 TSITSIPAS *
Good response from Tsitsipas as he runs to 40-0. Federer stays in the game with a shot from the back. But Tsitsipas can handle it.
* FEDERER 6-4 2-0 TSITSIPAS
Federer ace, his fifth game, 40-15. Another unforced Tsitsipas error allows Federer to back up the withdrawal interval. The Swiss are in full control.
ERDF 6-4 1-0 TSITSIPAS *
Tsitsipas double failure, 0-30. He then hits a backhand, two break points for Federer. And Federer gets the breakthrough with a forehand winner on the line.
* FEDERER 6-4 TSITSIPAS
Federer ace, 15-15. And another, 30-15. Lovely touch and feel in Federer's hammock after he puts Tsitsipas beyond the baseline. And he wins the first set with an ace.
An almost perfect set of Federer.
FEDERER 5-4 TSITSIPAS *
Tsitsipas keeps the love. One last chance to impress Federer's serve.
* FEDERER 5-3 TSITSIPAS
Federer's sublime tennis as he holds again, courtesy of an impressive backhand release.
FEDERER 4-3 TSITSIPAS *
Federer's skillful comeback picks up the top of the net and falls into Tsitsipas's dismay, 0-30. Tsitsipas's excellent response, which fights against 40-30.
And he holds when Federer's return flies a lot.
* FEDERER 4-2 TSITSIPAS
Federer consolidates the break and holds up to 15.
ERDF 3-2 TSITSIPAS *
First double foul of the match for Tsitsipas, 15-15. Great tennis while Tsitsipas pulls Federer all over the court and ends in the net, 30 to 30. Second double fault, 30-30. Tsitsipas long setback, Federer's breaking point.
Tsitsipas continues the attack and takes Federer's mistake. Tsitsipas long forehand, second break from Federer. Both players trade blows and it is Federer who slides first. Federer's backhand winner, after an excellent comeback, scores the points. Federer's third breaking point.
And he finally gets the innovation when Tsitsipas backhands.
* FEDERER 2-2 TSITSIPAS
Good attack on Federer's tennis, which takes the ball from the sky and hits the winner in the race. Then his first ace of the match, 40-0. And he holds again.
FEDERER 1-2 TSITSIPAS *
Federer's classic forehand winner, 0-30. Beautiful Federer backhand winner above the line, breakpoint. Saved by Tsitsipas after a big draw. Second breaking point for Federer after great defense.
But Tsitsipas finds another big loot. Federer's third break point after scoring the backhand is excellent. Tsitsipas crushes the winner, draw.
And the Greek hangs on after a long game of service.
* FEDERER 1-1 TSITSIPAS
Federer's forehand cuts the net and flies long, 30 to 30. But an overwhelming winner sees the slight initial nerves.
FEDERER 0-1 TSITSIPAS *
Tsitsipas's safe start while he clings to love.
16:35: Tsitsipas will serve first …
16:32: After a delay of about 90 minutes, Federer and Tsitsipas enter the court for the match. The winner will play De Minaur in the final.
16:15: It's all over in Basel, with De Minaur winning 7-6 6-7 7-6. The Australian never stops running.
16:08: We are in a third tie-tie set in Basel between Opelka and De Minaur.
15:35: While we wait for Federer x Tsitsipas, Here are some words from the Greek star about your opponent.
15:17: It's all square in Basel as Opelka wins the second set in another tiebreak.
15:05: Federer and Tsitsipas will be the courts shortly after the conclusion of the first semifinal between Reilly Opelka and Alex de Minaur.
De Minaur won the first set in a tiebreak and is on serve in the second set by 5-5.
14:45: Hello, welcome to the LIVE coverage of Roger Federer's semi-final clash against Stefanos Tsitsipas in the Swiss countryside.