Dunno about the no serve thing... It isn't Isner, but it is still competent. He won this serve off of Nishikori:
And the kid can volley as well. He's 18, so he's showing promise. His endurance, strength, and shot-making should improve from here. I mean, it took Thiem 27 years to win a slam.
That's
only 10 years more than the previous generation took(including the WTA)...*cough*. Sinner impresses as well. It's crunch time now at the IO, so we'll see how he and SInner fair.