MASON, Ohio (AP) Fourth-seeded Stan Wawrinka fought off Borna Coric's upset bid and advanced to the Western & Southern Open third round with a 3-6, 7-6 (3), 6-3 win Wednesday.
The French Open champion didn't take control until he broke Coric's serve in the sixth game of the third set and then held for a 5-2 lead. He will meet Ivo Karlovic in the third round.
Twelfth-seeded Richard Gasquet survived a first-set tiebreaker and advanced with a 7-6 (5), 6-2 win over qualifier Thanasi Kokkinakis. Gasquet will face seventh-seeded Marin Cilic in the third round.
Jerzy Janowicz beat wild card Jared Donaldson 6-4, 7-6 (4).
In a matchup of unseeded women's players, Karin Knapp defeated Daria Gavrilova 6-4, 6-1.
Rain delayed the start of play Wednesday for 35 minutes.