Defending champion Novak Djokovic reached the French Open third round on Wednesday with a 6-1, 6-4, 6-3 win over Joao Sousa of Portugal.

The world number two goes on to face Argentina's Diego Schwartzman, who has made the third round of a major for the first time, for a place in the last 16.

French Open results on Wednesday, the fourth day of the 2017 tournament at Roland Garros (x denotes seeding):

2nd rd

Guillermo Garcia-Lopez (ESP) bt Marco Trungelliti (ARG) 7-5, 6-4, 7-5

Grigor Dimitrov (BUL x11) bt Tommy Robredo (ESP) 6-3, 6-4, 7-5

Nikoloz Basilashvili (GEO) bt Viktor Troicki (SRB) 7-6 (7/3), 7-6 (7/2), 7-6 (8/6)

Dominic Thiem (AUT x6) bt Simone Bolelli (ITA) 7-5, 6-1, 6-3

Steve Johnson (USA x25) bt Borna Coric (CRO) 6-2, 7-6 (10/8), 3-6, 7-6 (8/6)

Horacio Zeballos (ARG) bt Ivo Karlovic (CRO x23) 7-6 (7/5), 7-6 (7/5), 6-3

David Goffin (BEL x10) bt Sergiy Stakhovsky (UKR) 6-2, 6-4, 3-6, 6-3

Diego Schwartzman (ARG) bt Stefano Napolitano (ITA) 6-3, 7-5, 6-2

Novak Djokovic (SRB x2) bt João Sousa (POR) 6-1, 6-4, 6-3

Rafael Nadal (ESP) Robin Haase (GER) 6-1, 6-4, 6-3