<p>Rafael Nadal's bid for a record 21st Grand Slam title came crashing to a halt at the Australian Open on Wednesday as Stefanos Tsitsipas rose up to topple the Spaniard 3-6 2-6 7-6(4) 6-4 7-5 and reach the semi-finals.</p>.<p>World number two Nadal had not lost a set coming into the evening clash at Rod Laver Arena and was locked on target for the last four at Melbourne Park after roaring to a two-set lead over the listless Greek.</p>.<p>The match turned on its head when Nadal wavered in a messy third set tiebreak, and a rejuvenated Tsitsipas rallied brilliantly to take the match into a decider.</p>.<p>Capturing Nadal's serve at 5-5 in the fifth, Tsitsipas saw two match points slip through his fingers as he served for the match but fired a backhand winner down the line on the third to claim one of his finest career victories.</p>.<p>"Well done for him, he played better than me probably in the important moments," Nadal told reporters.</p>.<p>"I tried my best in every single moment ... I think I stayed positive all the time during the match, fighting, and it was not enough. Sometimes it's enough, today was not enough."</p>.<p>Fifth seed Tsitsipas will meet Russian Daniil Medvedev for a place in the final.</p>.<p>"I fly like a little bird and everything was working for me," Tsitsipas said on court.</p>.<p>"The emotions in the end are indescribable." </p>
<p>Rafael Nadal's bid for a record 21st Grand Slam title came crashing to a halt at the Australian Open on Wednesday as Stefanos Tsitsipas rose up to topple the Spaniard 3-6 2-6 7-6(4) 6-4 7-5 and reach the semi-finals.</p>.<p>World number two Nadal had not lost a set coming into the evening clash at Rod Laver Arena and was locked on target for the last four at Melbourne Park after roaring to a two-set lead over the listless Greek.</p>.<p>The match turned on its head when Nadal wavered in a messy third set tiebreak, and a rejuvenated Tsitsipas rallied brilliantly to take the match into a decider.</p>.<p>Capturing Nadal's serve at 5-5 in the fifth, Tsitsipas saw two match points slip through his fingers as he served for the match but fired a backhand winner down the line on the third to claim one of his finest career victories.</p>.<p>"Well done for him, he played better than me probably in the important moments," Nadal told reporters.</p>.<p>"I tried my best in every single moment ... I think I stayed positive all the time during the match, fighting, and it was not enough. Sometimes it's enough, today was not enough."</p>.<p>Fifth seed Tsitsipas will meet Russian Daniil Medvedev for a place in the final.</p>.<p>"I fly like a little bird and everything was working for me," Tsitsipas said on court.</p>.<p>"The emotions in the end are indescribable." </p>