Ivo Karlovic vs Daniil Medvedev prediction

As serve takers Ivo Karlovic surely will collect his points. This grass surface surely ideal for his big serve and I fancy he should be manage it well. In other side I also expect Daniil Medvedev will do the same as serve takers; he already beat 4 players previously in this tournament, so mentally I think he is ready and tested already so far. I expect this situation will continue in first set so tie a break will happen then. I predict over 12.5 games on their first set.