D. Thiem - A. Karatsev

I believe that an American of high tension can offer, however he is not as stiff of a player as he may seem. Aleksandar can be dangerous both in serving and in knocking down, it's just a question of how his current form looks like, I haven't seen him play for a while, which also raises some doubts. Speaking of the Frenchman, he has definitely added to his game this year and continues to progress, he had some good runs in America on hard courts, so I am basing my prediction that he will triumph in three sets.