World no1 Rafael Nadal produced an incredible fightback to beat Russian Daniil Medvedev and keep his ATP Finals hopes alive on Wednesday. Nadal saved a match point at 1-5 down in the decider before winning 6-7, 6-3, 7-6.

It was looking like that Nadal will lost to 23-year-old debutant Medvedev broke serve twice in the decider to stand on the brink of a first career victory over the Spaniard. The Spaniard must beat Tsitsipas on Friday to have a chance of advancing. Nadal is also looking to keep hold of the world number one ranking.

Meanwhile Stefanos Tsitsipas crushed defending champion Alexander Zverev 6-3 6-2 to book his place in the last four of the ATP Finals with a match to spare. Tsitsipas is the first Greek player to qualify for the elite eight-man season-ender, backed up his opening win over Daniil Medvedev with a flamboyant performance in London.

His straight-sets victory secured a top-two place in the group and left Zverev, world number one Rafael Nadal and Medvedev scrapping to join him in Saturday’s semi-finals