Dominic Thiem knocked Rafael Nadal out of the Barcelona Open with a stunning 6-4 6-4 victory in Saturday's semi-final, avenging his defeat by the Spaniard in last year's French Open final.
The Austrian will meet Daniil Medvedev in Sunday's final after the Russian also pulled off a surprise by edging out fourth seed Kei Nishikori 6-4 3-6 7-5 in a tight match.
Thiem had lost his last two matches against world number two Nadal, at Roland Garros as well as a thrilling five-setter in the U.S. Open quarter-finals, but he won their last meeting on Spanish soil, beating the Mallorcan in last year's Madrid Open.
The Austrian, ranked fifth in the world, broke Nadal to take a 3-2 lead in the opener and held in the next game thanks to a stunning crosscourt forehand winner before seeing out the set.
He broke Nadal again in the fifth game to lead 3-2 and edged towards victory by taking a 30-15 lead before Nadal pulled himself back into contention by winning the next three points.
Thiem was serving for the match but Nadal dug deep to earn three break points only to lose each one, Thiem levelling the game with an ace after a marginal call from the umpire.
He sealed his fourth career victory over Nadal in 12 matches with a softly-struck backhand which the Spaniard had no chance of reaching, ending Nadal's chances of a fourth consecutive Barcelona Open title.
