Not a surprise at all, he wasn't fit against Kukushkin and his regular use of sliced 1-BH always kept him on the backfoot. Better to work on his fitness and health rather than grind a few early rounds without much benefit. Wise choice.
Australian Open @AustralianOpen 52 sHace 53 segundos
Juan Martin del Potro has pulled out of the #ausopen with injury. "I have to be smart. I'm looking forward to my future and my career"