“Change of balls finally got to Novak” “Players suffer all the time” – Nick Kyrgios blames ATP for World No. 1’s recent injury

Nick Kyrgios has criticized the ATP for the consistent changing of balls between tournaments which has led to Novak Djokovic’s wrist injury.  World No.1 Novak Djokovic faced an unexpected loss to Australia’s Alex De Minaur during the United Cup on…