London: India's Leander Paes and his Czech partner Radek Stepanek suffered defeat against David Marrero and Fernando Verdasco, in their Group B match at the ATP World Tour finals here on Wednesday.
The seventh seeded Indo-Czech pair fought hard before losing 4-6 6-7 (5) to their Spanish rivals in one hour and 29 minutes.
Now Paes and Stepanek, the US Open winners, must beat Marcel Granollers and Mark Lopez for making it to the next stage.
The Indo-Czech pair had beaten Alexander Peya and Bruno Soares on Tuesday.
Meanwhile, with their win, Marrero and Verdasco became the first team to qualify for the semifinals with two wins in as many matches.
