Holders Czech Republic moved into the quarter-finals of the Davis Cup with Tomas Berdych outlasting Swiss opponent Stanislas Wawrinka a day after the pair emerged from a marathon doubles encounter.
Berdych enjoyed a comparatively easy 6-3 6-4 3-6 7-6 victory over Wawrinka, to give the Czechs an insurmountable 3-1 lead, a day after he and partner Lukas Rosol edged a punishing seven-hour clash with Wawrinka and Marco Chiudinelli 24-22 in the final set.
The Czech's will now travel to Kazakhstan in April after the former Soviet nation wrapped up a 3-1 victory over Austria yesterday.
Elsewhere, Marin Cilic won his second singles match to level Croatia's clash with Italy at 2-2 and ensure the final singles rubber between Fabio Fognini and Ivan Dodig will be decisive.
France, Serbia and Argentina had already booked their spots in the quarter-finals on Saturday, while five-times winners Spain are currently 2-1 down to Canada and the United States lead Brazil 2-1.
