Greek fifth seed Stefanos Tsitsipas qualified for his third successive major semi-final, winning 6-3, 7-6 (7/3), 7-5 to avenge his defeat by second-ranked Daniil Medvedev at the Australian Open and set up a showdown with Alexander Zverev.

The match, which was of a high quality in the second and third sets, ended in an interesting fashion that got both players talking afterwards. Down a match point, Medvedev brought out an underarm serve out of nowhere but Tsitsipas was quick to pounce and close the deal.

Here’s how the protagonists reacted to that moment: