Janko Tipsarevic plays Radek Stepanek in the final rubber of Serbia's Davis Cup tie against the Czech Republic.
You can watch Tipsarevic v Stepanek live for free at bet365>live streaming>tennis
If Novak Djokovic beats Tomas Berdych in the first match on Sunday then the tie will go to a deciding fifth rubber and either Tipsarevic or Stepanek will get the chance to be a hero.
Both players won their singles matches on Friday with Tipsarevic stealing the show with his four set win over Tomas Berdych. The Serb is renowned for his giant killing reputation and he ended Andy Roddick's hopes at the US Open.
Stepanek is still feeling his way back after returning from injury this summer but he has shone so far in this tie, beating Viktor Troicki and then teaming up with Berdych to take the doubles.
He has been a hero for the Czechs in the fifth rubber of ties several times in recent years, beating Juan Monaco last year so ensure a 3-2 win over Argentina. Tipsarevic has never played a live fifth rubber before.
Tipsarevic won in three sets when they met indoors in Moscow three years ago but Stepanek got revenge 7-6, 6-0 when they met on the clay of Barcelona last year.
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