Troicki, Cuevas, Kohlschreiber make Sydney quarters

Defending two-time champion Viktor Troicki, second seed Pablo Cuevas and Philipp Kohlschreiber all reached the quarter-finals of the Sydney International on Wednesday.

Serbian third seed Troicki, who won the event in 2015 and 2016, had few problems beating Paolo Lorenzi of Italy 6-3, 6-4 to set up a meeting against German fifth seed Kohlschreiber next.

The only break of serve in the first set happened when Troicki claimed the Italian's serve in the fourth game as he went on to win the opener 6-3.

In the second set, the only break happened in the seventh game as the Serb went on to wrap up the set and match 6-4. His opponent in the quarter-finals, Kohlschreiber, defeated Australia's Jordan Thompson 7-5, 6-4 earlier in the day.

In some other second round result's, Uruguayan second seed Pablo Cuevas needed three sets to get past unseeded Frenchman Nicolas Mahut 6-4, 2-6, 6-2 while, in an upset, unseeded Brit Daniel Evans beat eighth seed Marcel Granollers of Spain 1-6, 6-3, 6-3.

Russia's Andrey Kuznetsov got through to the next round when Alex De Minaur of Australia was forced to retire injured with the score at 6-2, 0-0 in favour of the Russian.

Fourth seed Pablo Carreno of Spain needed two hours and 12 minutes to down Germany's Mischa Zverev 3-6, 7-6(4), 6-3 while sixth seed Gilles Muller from Luxembourg stayed on track by beating Australian hometown favourite Matthew Barton 6-1, 3-6, 6-4.