There were more upsets in Melbourne, as Day 4 of the Australian Open saw the likes of Stan Wawrinka, David Goffin and Sam Querrey all out on the men’s side. Unfortunately for our hitters, Lesia Tsurenko couldn’t serve out the match and Jiří Vesely blew set points in the swing second set before blowing the breaker. I did hint Querrey and Goffin were vulnerable ahead of their third-round matches, but I did not expect Tennys Sandgren to knock out Stan the Man even with all the question marks surrounding the Swiss player. With extreme heat in the forecast for Day 5, conditions won’t get any easier for top players tonight. Let’s take a look at the card.