The Indo-Czech pair scored a convincing 6-1, 6-4 win over Agustin Calleri of Argentina and Spain's Tommy Robredo.
John Isner and Ivo Karlovic became the tallest doubles partnership when they played their first round match at the Australian Open.
Lleyton Hewitt was involved in a record-breaking doubles match on Monday when he and partner Chris Guccione beat Agustin Calleri and Juan Monaco of Argentina 4-6 7-6 18-16.
Spain went 2-1 ahead in the Davis Cup final against Argentina on Saturday when Fernando Verdasco and Feliciano Lopez beat David Nalbandian and Agustin Calleri in a fiery doubles encounter. Nalbandian and Calleri took the first set before the visitors hit back for a 5-7, 7-5, 7-6 (7-5), 6-3 win in three hours 19 minutes to put Spain within reach of a shock win.
Indian Davis Cupper Mahesh Bhupathi and Mark Knowles cruised into the finals of the euro 891,000 ATP Swiss Indoor tournament, defeating Argentine pair Jose Acasuso and Agustin Calleri in straight sets in Basel on Saturday.
Teenager Juan Martin del Potro, making his Davis Cup home debut, demolished a listless Nikolay Davydenko 6-1, 6-4, 6-2 to put Argentina 2-0 ahead in their semi-final against Russia on Friday. David Nalbandian drew first blood for Argentina with a 7-6, 6-2, 6-4 win over Igor Andreev.
Seventh seed Andy Murray became the highest-ranked player to go out, beaten 6-4, 6-4 by former Wimbledon semi-finalist Mario Ancic of Croatia in the second round of the Barcelona Open.
Third seed David Nalbandian recovered from a shocking start to beat Argentine compatriot Agustin Calleri 1-6, 7-6, 6-3 on Tuesday and become the first man into the third round of the Barcelona Open.
American James Blake eased into the semi-finals of the US Clay Court Championship on Friday after a comfortable 6-4, 6-3 win over Argentine Agustin Calleri. The top seeded world number eight will face Oscar Hernandez of Spain in Saturday's semi-finals.
Australia could be in trouble for failing to field appropriate players in their two dead Davis Cup semi-final singles rubbers against Argentina in Buenos Aires on Sunday.
Sania advanced to the second round with a 6-3 6-3 win over Spaniard Anabel Medina Garrigues.
Former world number ones Lleyton Hewitt, Juan Carlos Ferrero and Marat Safin moved smoothly into the second round of the Hamburg Masters on Monday but last year's runner-up Radek Stepanek fell to Arnaud Clement.
Tommy Robredo demolished fellow Spaniard Feliciano Lopez 6-2, 6-2 at the Barcelona Open.
The Argentine suffered a shock straight-sets defeat by Peru's Luis Horna in the round-robin stage at the Buenos Aires Open.
Marat Safin and Dmitry Tursunov hammered David Nalbandian and Agustin Calleri 6-2, 6-3, 6-4 in the doubles to give Russia a 2-1 lead.
Argentina reached the Davis Cup final for the second time as victory in the doubles gave them an unassailable 3-0 lead over Australia.
The Spanish teenager produced another dazzling performance to storm into the Barcelona Open quarter-finals.
The Spaniard's revival continued with an enthralling 6-4, 4-6, 6-3 victory over Argentine Gaston Gaudio to earn a place in the semis of the Barcelona Open.
Argentina came back from the brink to snatch a thrilling 2-1 victory over the Czech Republic in Saturday's final and capture the World Team Cup for the third time.
In the women's event of the Nasdaq 100 Open, second seed Venus Williams joined sister Serena in the last eight.
The win gave the Russian his third title of the year.
Spain's Feliciano Lopez sent the Australian ninth seed spinning out of the Madrid Masters on a night of surprises.
Maria Sharapova powered into the semi-final with a 6-3, 6-3 defeat of Russian rival Anastasia Myskina at the Nasdaq-100 Open
They beat Joshua Eagle and Jared Palmer in the quarter-final of the Italia Masters. \n\n
The former world No. 1 reached the semi-finals of the Bellsouth Open at home in Chile.