Sydney: Rafael Nadal and Novak Djokovic will face each other in the final of the inaugural ATP Cup after winning epic three-set matches on Saturday to steer Spain and Serbia into the decider. World No. 1 Nadal ground down pumped-up Australian Alex de Minaur to guide the Davis Cup champions through their semi-final, while Djokovic battled past Russia's Daniil Medvedev.

Under the format of the innovative team event in Sydney, the top-ranked singles players from each country play each other, ensuring the two legends clash for a 55th time since their first showdown in 2006.