Steve Johnson - Jack Sock Both are young players with Sock rated a bit higher mainly because being younger. Johnson seems to have been recovered from recent injury problems, but on the other hand beating Young who is on the one of the worst runs of his career (if not worst) is nothing really impressive. Sock has beaten nearly the same kind of player Bogomolov who won just 4 out of his last 22. I think both will try to set up clash with Isner, so we will have occasion to watch very entertaining match. Johnson leads h2h 1-0 played last Autumn. Over should be the best option here.