Mischa Zverev did perhaps the second biggest upset of the Australian Open 2017, when he in the fourth round beat world number one Andy Murray in four sets. He is now set to play either Kei Nishikori or Roger Federer in the quarter-finals. Mischa Zverev has had a rough and bumpy career with injuries and self-doubt (as described in this ATP World Tour interview), but is now back in the …
