"Zverev has 31 double faults in 31 service games in the tournament. He said an offseason exhibition tour in South America with Roger Federer left him behind in his preparations."
Oh, no. Who would have thunk.https://t.co/gYShGMowK2

— C Kristjánsdóttir ●🐊 (@CristinaNcl) January 7, 2020