Humbert U. vs Korda S. prediction

in quarter finals of atp halle humbert will play against korda. my prediction is straight sets victory for humbert. in my oppinion he is better player, he has strong and accurete serve, he is left handed and he is really good at tie breaks. french school of tennis learn players to improve all elements of tennis game and on grass that is most visable. korda is solid but his game is not for grass, he has 3 matches in career on grass, he beat bautista and nishikori but they had big problems in game and they are not in good form like before. i give bigger chances to humbert and i am convinced in his victory