Defending champion Daniil Medvedev rallied to beat unseeded American Sebastian Korda 4-6, 6-1, 6-3 and book a spot in the Paris Masters quarter finals.

Korda looked stunned as his Russian opponent milked the applause from the crowd in Paris. “There were times where I could feel the crowd supporting me because there were crunch moments, and I really loved it,” Medvedev said. “If you talk about the third set, same. I managed to make some amazing shots.”

Medvedev, who is vying with top-ranked Novak Djokovic to finish the year as No. 1, served for the match but Korda broke him to trail 5-3.

He broke Korda straight back, sealing the victory on his first match point after Korda’s 40th unforced error of the match.

Medvedev next faces French qualifier Hugo Gaston, who rallied from 0-5 down in the second set to win 6-4, 7-5 against 18-year-old Spaniard Carlos Alcaraz.

Djokovic earlier advanced without playing a point because Gael Monfils pulled out injured.

Fourth-seeded Alexander Zverev advanced to the last eight after beating No. 16 Grigor Dimitrov 7-6 (7-4), 6-7 (3-7), 6-3.