Florian Senechal powered to victory during a dramatic climax to Stage 13, while Odd Christian Eiking retained his grip on the red jersey at the Vuelta a Espana.
Deceuninck-Quick-Step rider Senechal claimed his maiden Grand Tour stage win at Villanueva de la Serena on Friday.
Senechal's team-mate – and green jersey holder – Fabio Jakobsen looked poised for the victory heading into the twisty last 5 kilometres, but slipped off the pace at the vital moment.
The Frenchman subsequently held his nerve during the final sprint as he pipped Matteo Trentin to the line.
"I don't realise yet that I’ve won a Grand Tour stage," he said.
"It's crazy. At first, I thought Demare was going to pass me, or [Michael] Matthews. But nobody did.
"I don't know how to thank my team-mates. They did a crazy job to put me in the perfect position. A thousand thanks.
"I am lucky today and I'm very happy for my family, my friends and my wife. It’s a good present."
Meanwhile, GC leader Eiking survived the day in the valley to maintain his hold on the red jersey ahead of a brutal summit finish at Pico Villuercas on Saturday.
Although, the Norwegian is expecting defending champion Primoz Roglic to pose a significant threat to his chances of retaining La Roja.
"I'm happy I didn't lose too much time [on Friday]," he said.
"I want to try and keep the red jersey tomorrow, but it depends mostly on Roglic.
"If he decides to stand up and go for it, it's going to be difficult but if I'm lucky and if I have the legs, I can keep fighting for the jersey."
STAGE RESULT
1. Florian Senechal (Deceuninck-Quick Step) 4:58:23
2. Matteo Trentin (UAE Team Emirates)
3. Alberto Dainese (Team DSM) +0:02
CLASSIFICATION STANDINGS
General Classification
1. Odd Christian Eiking (Intermarche-Wanty-Gobert) 50:31:52
2. Guillaume Martin (Cofidis) +0:58
3. Primoz Roglic (Jumbo-Visma) +1:56
Points Classification
1. Fabio Jakobsen (Deceuninck-Quick-Step) 200
2. Magnus Cort Nielsen (EF Education–Nippo) 114
3. Primoz Roglic (Jumbo-Visma) 106
King of the Mountains
1. Damiano Caruso (Bahrain Victorious) 31
2. Romain Bardet (Team DSM) 27
3. Michael Storer (Team DSM) 17
What's next?
The riders return to the mountains on Saturday for Stage 14, which will run 165.7km between Don Benito and Pico Villeurcas.