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Alexander Zverev saves eight of nine break points to beat Ernests Gulbis at the Banque Eric Sturdza Geneva Open on Tuesday.

Zverev Cruises Into Geneva Quarter-finals

Delbonis defeats Dimitrov in three sets

Alexander Zverev breezed past Ernests Gulbis 6-2, 6-1 to reach the Banque Eric Sturdza Geneva Open quarter-finals on Tuesday.

The World No. 5, making his first appearance at the ATP 250 event, won 81 per cent of first-serve points (34/42) and saved eight of nine break points to book his spot in the last eight after 65 minutes. Zverev improves to 16-10 this year and levels his FedEx ATP Head2Head series against Gulbis at 1-1.

"It was a good win, obviously [Gulbis] is someone that plays very aggressive and hits the ball very hard at times," said Zverev. "[In the] first few games I thought it was going to be a very difficult match and then I picked up my level a little bit."

Zverev will face Hugo Dellien, who defeated Janko Tipsarevic 7-6(3), 6-3, in his third clay-court quarter-final of the season. Earlier this month, the German reached back-to-back quarter-finals on the surface at the BMW Open by FWU (l. to Garin) and the Mutua Madrid Open (l. to Tsitsipas).

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Federico Delbonis recovered from a set down to record his first victory against Grigor Dimitrov. The 28-year-old Argentine, who entered the first-round match with a 0-2 FedEx ATP Head2Head record against Dimitrov, converted all five break points he earned to record a 1-6, 6-4, 6-2 victory after one hour and 36 minutes.

The 2015 semi-finalist (l. to Sousa) will meet defending champion Marton Fucsovics in the second round. Last year, Fucsovics defeated Peter Gojowczyk in the championship match to become the first Hungarian to lift a tour-level title since 1982. Delbonis and Fucsovics have never met on the ATP Tour.

Dimitrov was appearing in the main draw after successfully navigating his first qualifying draw since the 2012 Rolex Paris Masters. The 2017 Nitto ATP Finals champion, who is searching for form after a right shoulder injury, had to take a wild card into qualifying after the three available main draw wild cards had already been allocated to Stan Wawrinka, Feliciano Lopez and Janko Tipsarevic.

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"This week there has been a lot of focus on different things for me. Not so much on the results. I am trying new things, different positions on the court, different varieties of play and just pushing myself to a different game plan. I must admit, the first set was really good," said Dimitrov.

"I was very, very happy with the way that I was able to execute and, for sure, in the second and third sets, I was clearly not doing the things the same as I was doing in the first set... For me, it is a positive, to be honest. This week has been great. I have been practising every single day and haven't had one day off. I can put a lot into the storage right now for Roland Garros and obviously get out there and try to have better results."

Damir Dzumhur saved six of seven break points en route to a 6-7(2), 6-4, 7-5 win against wild card Feliciano Lopez. The 27-year-old qualifier will meet second seed Stan Wawrinka in the second round.

Portugal’s Joao Sousa, the 2015 finalist, won 80 per cent of his first-service points (51/64) to beat Leonardo Mayer of Argentina 6-3, 6-7(6), 6-4 in two hours and 17 minutes. Sousa will next face Spain’s Albert Ramos-Vinolas, who recorded his third clay-court victory against sixth seed Adrian Mannarino 6-7(2), 6-3, 6-2. Ramos-Vinolas served for the first set at 6-5, and later recovered from an 0-2 deficit in the deciding set.

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