STUTTGART, Germany — Canada's Milos Raonic is off to the quarterfinals of the Stuttgart Open.
The No. 6 seed from Thornhill, Ont., edged Jo-Wilfried Tsonga of France 6-4, 6-7 (5), 7-6 (1) in second-round action of the ATP Tour 250 grass-court event on Wednesday.
It was the second third-set tiebreak win in a row for Raonic, who beat Australian qualifier Alexei Popyrin in the first round.
The hard-hitting Raonic out-aced the 79th-ranked Tsonga 24-15. The Canadian saved all four of Tsonga's four break-point chances.
Raonic, the runner-up in Stuttgart last year, will face Hungary's Marton Fucsovics in the quarterfinals.
The 52nd-ranked Fucsovics upset No. 4 seed Nikoloz Basilashvili of Georgia 6-7 (4), 6-2, 7-5 on Wednesday.
Raonic is playing for the first time since suffering a right knee injury in late March.
Montreal's Felix Auger-Aliassime, the No. 7 seed, will meet France's Gilles Simon in a second-round match on Thursday.