Wawrinka is the highest-ranked player remaining in the

top half of the draw after world number one Andy Murray's shock loss to 129th-ranked qualifier Vasek Pospisil in the second round.

With superstars Novak Djokovic, Rafael Nadal and Roger Federer all jammed into the bottom quarter of the draw, Wawrinka's path looks wide open.

But the Swiss said he didn't think of it that way.

"It's not like I have been in a lot of semi-finals, finals in Masters 1000," he said. "So I need to focus on every match."

- Thiem in no time -

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Eighth-seeded Austrian Dominic Thiem powered into the fourth round with a 6-1 6-4 victory over Germany's Mischa Zverev.

World number nine Thiem, riding high after winning the title in Rio, had little trouble from Zverev's serve-and-volley style.

Although the German saved five match points in the ninth game of the second set, Thiem served out the victory in the next game in less than an hour.

Thiem next faces either big-serving American John Isner or France's Gael Monfils, who were to wrap up the night's action under the lights on Stadium Court.

Elsewhere, Pospisil was unable to build on the best win of his career falling to fellow qualifier Dusan Lajovic 7-6 (7/4) 3-6 7-5 just two days after toppling Murray.

Pospisil served for the match at 5-3 in the third set but was broken to love, then failed to convert a match point in the 10th game as Lajovic won the last four games to take the match.

(This article has not been edited by DNA's editorial team and is auto-generated from an agency feed.)