Medvedev 5-1 Tsitsipas, the Russian leads clearly their head-to-head but the Greek won their last match, not so recent, in December 2019.

Open d'Australie
Medvedev D • 4
Tsitsipas S • 5
Medvedev D • 4
Tsitsipas S • 6
Tsitsipas S • 6
Medvedev D • 3
Medvedev D • 10
Tsitsipas S • 6
Tsitsipas S • 4
Medvedev D • 7
Medvedev D
Tsitsipas S • 15