Sepp Kuss is set to win the 2023 Vuelta a Espana, the American's first Grand Tour title, after successfully defending his slim overall lead in the penultimate stage which was won by Wout Poels.
Kuss went into the penultimate stage of the Spanish Grand Tour on Saturday 17 seconds ahead of Jumbo-Visma teammate Jonas Vingegaard, with Primoz Roglic completing the team's domination of the general classification in third place, and the three crossed the finish line together.
Wout Poels outsprinted Remco Evenepoel to claim the stage win, after both riders were part of an early breakaway group.
A beaming Kuss was flanked by this year's Tour de France winner Vingegaard and Giro d'Italia winner Roglic, with the team now about to make history by becoming the first to win all three Grand Tours in one season - and with three different riders.
Sunday could be a special day too for Kaden Groves, who may become the first Australian to win the green jersey for triumphing in the points classification.
The Queenslander goes into the final stage 19 points clear of Evenepoel, who may have been dethroned as champion but has at least also sealed the King of the Mountains jersey as the best climber.
Kuss helped both Vingegaard and Roglic to their Grand Tour victories this year but in Spain, unexpectedly, it has been the domestique's time to shine and the 29-year-old took over as leader after stage eight.
Vingegaard and Roglic both chipped away at Kuss's lead, but in the end they guided the surprise leader to maintain his first place.
"Primoz did a lot of work for me there on the last climb, and then on the last flat with Jonas, that's just something I never imagined," Kuss said.
In the final moments of Saturday's stage, the three teammates put their arms around each other as Vingegaard and Roglic saluted their colleague.
"It was a super special moment to be able to relax that much in the last kilometre of a mountain stage with your two teammates is just really cool, it hasn't sunk in yet," Kuss added.
With the Jumbo-Visma team happy to sit back and defend their top three places overall, a 31-man breakaway group on the opening climb led by Evenepoel was allowed to stay away and extend its gap.
Stage 20 was the longest of this year's race, a 208km hilly ride from Manzanares El Real to Guadarrama. While none of the ascents were above category three, the riders did face 10 climbs before the final flat eight kilometres.
Evenepoel, whose general classification hopes evaporated on stage 13 where he lost more than 27 minutes on the leaders, seemed poised to win his fourth stage of this year's Vuelta.
The final climb saw Poels attempt to get away from the rest and it looked like Evenepoel's race was over, but he rallied to rejoin the Dutchman along with three other riders.
But Poels, of the Bahrain Victorious team, put in a last-chance attack just before the final corner to get ahead of Evenepoel and held on to beat him in the final sprint, with Pelayo Sanchez finishing third.
More than 10 minutes later the Jumbo-Visma trio strolled to the finish line.