Mahesh Bhupathi [ Images ] and Rohan Bopanna [ Images ] reached the men's doubles quarter-finals in the euro 713,000 Artois Championships in London [ Images ] without playing a single match.

The eighth seeded Indian Davis Cuppers, who had a bye in the first round, got a walkover in the second, as their opponents, Chilean Fernando Gonzalez [ Images ] and Ecuadorean Nicolas Lapentti [ Images ], opted out of the contest.

The duo meet second seeds Daniel Nestor [ Images ] of Canada [ Images ] and Nenad Zimonzic of Serbia for a place in the semi-finals.

Nestor and Zimonzic got the better of Australians Paul Henley and Todd Perry 7-5, 6-2.