London - Garbine Muguruza became the first Spanish woman in 19 years to reach the Wimbledon final on Thursday with a rollercoaster 6-2, 3-6, 6-3 win over Poland's Agnieszka Radwanska.
The 21-year-old goes on to tackle either world number one and five-time champion Serena Williams or 2004 winner Maria Sharapova in Saturday's final.
Aranxta Sanchez-Vicario was the last Spanish woman to make the final at the All England Club while Conchita Martinez was the last champion in 1994.
Muguruza had to endure some nervy moments before she secured her maiden Grand Slam final spot, seeing a 3-1 lead in the second disappear against the three-time semi-finalist.
Muguruza, who has only one tour title to her name, then took victory with a power-packed flowing forehand, her 39th winner of the contest.
"I have worked all my life for this, I have no words," said 20th seed Muguruza who will climb into the top 10 for the first time next week as a result of her performance at Wimbledon.
"It was a tough match. Agnieszka has so much experience but I just wanted to keep fighting."
Muguruza said she expected her family to fly to London to see Saturday's final having told them to stay away as not to jinx her progress.
"My mother, father and brother will come over - I didn't want them to come before in case things changed," she said.
Muguruza said she was hoping for the best when the shot which took her to match point was called out - possibly by a member of Radwanska's team in the player's box.
"I challenged. I was praying it was on the line."
Muguruza will be the underdog in the final. She trails Sharapova 3-0 and Williams 2-1 although she did defeat the American at the French Open last year.
The Spanish palyer, contesting her first Grand Slam semi-final after back-to-back runs to the French Open quarter-finals in 2014 and 2015, had enjoyed an impressive tournament.
She had knocked out fifth seed Caroline Wozniacki and 10th-seeded Angelique Kerber to make the last four.
Radwanska, the 2012 runner-up, hadn't faced a player inside the top 20.