John Isner vs Taylor Fritz prediction

As a long shots today, I really like Opelka @3.60 and Fritz @4.10. But let's to be honest. They are still young and a lot here to prove especially against Isner and inconsistent Young. I dJecided to go on Fritz today. Odds are tend to be dropping on Isner. So, It is good for me to take bigger odds on Fritz. We all know about Isner who is a tall American guy, has big serve and holds his serve like a monster, %94. However, he rarely breaks opponents. Especially in the first sets. Isner lost to Steve Johson at Washington and lost to another young fellow Ryan Harrison at Toronto. Why not against Fritz who had took a set from Wawrinka and Federer. If we talk about Fritz and to make obvious comparison, better to look his matches against Karlovic, Steve, Sock, Sam vs... All his matches were competitve, beaten Steve, took a set from Karlovic, Sock.. Fritz has %84 serve hold percentage and breaks %21 which is much better than Isner. Isner has priced 13 times under 1.50 odds this year and he dropped at least a set in 7 of them, almost half of them.