Germany and Poland will do battle for United Cup glory in Sunday's final thanks to respective semi-final victories at the Ken Rosewall Arena in Sydney.
Saturday's opening final-four clash saw Poland decimate France 3-0 to cruise into the showpiece match, before Germany secured a 2-1 win over hosts Australia thanks to a crucial doubles triumph.
After topping Group A with successive wins over Brazil and Spain, the Hubert Hurkacz and Iga Swiatek-inspired Poles only dropped one set in their quarter-final success over China, and a similar tale materialised against France.
Hurkacz opened for Poland with a singles tie against Adrian Mannarino, whom he had lost to in their only meeting last year at the Miami Masters, but the world number nine earned revenge with a 6-3 7-5 win this time around.
The big-serving 26-year-old sent 15 aces flying past Mannarino over the course of their 100-minute battle, winning 86% of points behind his first serve and denying the Frenchman a single break point throughout the contest.
Mannarino failed to recover after losing his serve in the fourth game of the first set, and while the 35-year-old held his own in a tight second set, Hurkacz's pressure eventually told with a break in the 11th game before a forehand smash at the net sealed the win.
Hurkacz's win preceded a fifth top level meeting between world number one Swiatek and 20th-ranked Caroline Garcia, who took the opening set against the Pole but fell victim to a roaring Swiatek comeback in a 6-4 1-6 1-6 defeat.
In Garcia's opening service game, Swiatek let a 40-0 lead slip before being broken in the seventh, and despite saving a set point in the ninth game with an ace, the world number one would have it all to do in the second set.
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However, the 22-year-old came out all guns blazing after the restart, racing into a 5-0 lead in the second set thanks to a pair of breaks before a slightly nervy final hold to force a decider, where her powers did not wane either.
Again, Swiatek immediately earned the double break to leave Garcia's hopes hanging by the thinnest of threads, and while serving to stay in the match, the Frenchwoman was broken to love, sending a backhand wide to ensure Poland's place in the final.
An inconsequential mixed doubles rubber followed, where Poland maintained their 100% knockout record as Katarzyna Kawa and Jan Zielinski comfortably overcame Elixane Lechemia and Edouard Roger-Vasselin 6-3 6-3.
Several hours later, Germany would get off to a dream start against Australia, as Angelique Kerber took a leaf out of Swiatek's fightback book to defeat Ajla Tomljanovic 4-6 6-2 7-6[9].
The three-set triumph marked Kerber's first WTA win since Wimbledon 2022, having given birth to a daughter last year, and she saved two match points to prevail in a frenetic battle.
Kerber's remarkable triumph gave Alexander Zverev the opportunity to send Germany into the final with victory against Alex de Minaur, whom he had beaten six times in their previous seven meetings, but the Australian came from behind to keep the hosts' hopes alive.
De Minaur took two hours and 40 minutes to prevail 5-7 6-3 6-4, saving three of the four break points he faced and executing a forehand smash to perfection on the first of his three match points.
Zverev quickly dusted himself down to pair up with Laura Siegemund for a decisive doubles battle with Storm Hunter and Matthew Ebden, and the quartet went toe to toe for over two hours in an incredibly close contest.
A third-set tie-break would be needed to determine the victors, and it was the Germans who triumphed 7-6[2] 6-7[2] [15-13] to give themselves a shot at stardom against the Poles on Sunday.
