Diego Schwartzman outlasted Dominic Thiem in a five-hour, five-set French Open quarterfinal. Next up: likely 12-time French Open champion Rafael Nadal, whom Schwartzman beat three weeks ago.
Schwartzman, the undersized, 12th-seeded Argentine, dumped Thiem, the 2018 and 2019 French Open runner-up, 7-6 (1), 5-7, 6-7 (8), 7-6 (5), 6-2 on Tuesday.
Schwartzman recovered after being broken while trying to serve out the third and fourth sets to reach his first Grand Slam semifinal.
He could play Nadal on Friday, if the Spaniard gets past 19-year-old Italian Jannik Sinner in a later Tuesday quarterfinal.