Zverev Blames Fatigue For Shanghai Masters Loss, Really?

So, Alexander Zverev lost to Alejandro Davidovich Fokina at the Shanghai Masters, and he’s like, 'I’m tired, man!' But former ATP guy Robbie Koenig says, 'Nah, it’s your serve, buddy!' Zverev thought he was flat, but hey, he had a good week! Now he’s off to Vienna, hoping to snag that World No. 1 spot. How you doin’?