In the Opening round of the Australian open, Alex Michelsen defeats Tsitsipas [1y2C85iaGYi] Published in Everyday Knowledge In the Opening round of the Australian open, Alex Michelsen defeats Tsitsipas c2LnciJpKT0 nIVi1cEHTCs mye79Io8oqC 8TXNVFRrjf7 tWycCbriA7S