Zverev’s serve blitzes Fritz to set up semi-final with British revelation Fery

No 2 seed wins 6-4, 6-4, 6-2 against American sixth seed Zverev: ‘I know 99% of people will be cheering for Fery’ It is quite the sound when a tennis ball is pulverised by Alexander Zverev as he serves. There is the crack of racket on ball. The gasps from the crowd. And then the oohs after they glance at the speed gun.