Bernard Tomic has claimed his highest ranked scalp in seven months, beating World No.11 David Goffin to advance to the third round of the Cincinnati Open.

Tomic had to stage a fightback, dropping a set to the German before rebounding to win 3-6 7-5 6-4 in 110 minutes.

It marks the first time the Australian has beaten a player inside the top 12 since Kei Nishikori at the Brisbane International in January.

He will now have to repeat the feat. The Japanese World No.7 will be his next opponent at the Cincinnati tournament after beating Russian Mikhail Youzhny 6-3 6-2.

Tomic will aim to keep his serve on song for the contest. Against Goffin he managed to send down 16 aces and landed 65 per cent of first serves to set up the win.

It was a much needed victory with less than two weeks till the US Open and given he was bundled out in his first match at the Los Cabos Open in Mexico.

Fellow-Australian John Millman didn’t fare so well on Wednesday (Thursday AEST), bundled out by eighth seed Dominic Thiem 7-5 6-1.

Second seed Stan Wawrinka is also through to the third round after he beat US teen Jared Donaldson 2-6 6-3 6-4 in a rain-interrupted two-day match.

Wawrinka is resurrecting his game after a back problem kept him from the Rio Olympics.

The 31-year-old double grand slam winner spent eight days without touching a racquet but says he is on the mend.

“The back is fine now, it’s felt good for quite a few days,” he said. “Now I need matches.”

Wawrinka said his goal for the rest of the 2016 season is to qualify for the London year-end championships for a fourth consecutive edition.

“I have to stay inside the top eight. That’s what I’m working for,” the ATP number four said.

Seventh-seeded Frenchman Jo-Wilfried Tsonga also beat American Reilly Opelka 7-6 (7-5) 7-6 (7-3).