Dominic Thiem upset Rafael Nadal's winning streak of 17 consecutive victories by beating the Spaniard 6-4, 6-3, in the quarterfinals of the Rome Masters.

The seven-time champion, who defeated Thiem in the finals in Barcelona and Madrid, suffered his second defeat against the Austrian player on Friday and bade farewell to the Rome Masters.

Nadal, widely regarded as the greatest clay court player in history, played his twelfth quarterfinal match in the last thirteen appearances in Rome, but succumbed to a great performance by Thiem, who will play on Saturday the semifinal match against the winner of the duel between Serbian Novak Djokovic and Argentine Juan Martin Del Potro.