T. Fritz vs G. Simon prediction

Simon is consistent performer on clay surface and he plays calm and defensive. He has problems on clay when opponent is big server,like today. Simon is 27-22 in career and 5-5 in last 10 games agaisnt big servers. But Simon played his last match on clay against big server was in April 2015 when he lost to Traver 2-1. Taylor Fritz is one of the most potential player for future. He is 19 years old and ranking 73th. He has big serve and great forehand. Fritz is 10-4 on ATP Level. He has beaten solid players in last 12 months like Estrella, Chardy, Busta, Becker... Simon is heavy favourite on this match but i'm not sure that it will be easy. Roland Garros is starting on next 4 days. This is one of the most important tournament in a year for every player. Simon played R16 match last year in French Open. So, he will probably want to save his energy.