Tsonga J-W. vs Kevin Anderson prediction

Both Tsonga and Kevin are big servers. Tsonga has hold 92 percent his serve while Kevin has 88 percent. Above from statistics, Tsonga had injury in his feet while Kevin had also serious injuries. However, Kevin has returned very strong to US Open as I watched him against Nishioka and Vasek. On the other side, Tsonga had easier matches against weaker opponents. So, he has not push himself hard yet. Tsonga is 3-0 over Kevin in their previous meetings and they have played 5 tie break in 7 sets they played and 6 of them past over 10 games. It is obvious that we will watch many ace and strong first serve games. I believe that there will be more than 10 games in first set.