Which one of these 2 very impressive 17-year-olds has more potential? I was stunned by both of their games in recent tournaments. To me it seems that Zverev has the bigger game and bigger weapons, while Coric is more athletic and has better defense. Some of Coric's gets and scrambling points against Fognini were just as good as Nole's or Murray's. All of this running wore out his still immature body (he cramped badly in the last game) but that is something he will probably fix as he grows and fills out a bit. Another impressive thing about these guys is their backhands. Both BH are already world-class. They can take them cross court or DTL with ease and have great finishing power off that side. So, who will be better? It's honestly very hard to call right now. IMO both will be future slam champs, but I'm gonna be bold and say Coric will accomplish more. His scrambling and athletic game (contrast to Zverev's bigger, Del Potro-like game) is more suited to the current style. Also, Coric's FH seems a bit more technically sound. This could be a big asset given how important the FH is in modern tennis. What do you think?