Sinner also won against Tiafoe, so let's see how far will Sinner go, yes I do believed that Monfils is out of form, but this kid shows something against Tiafoe, now he will be facing Wawrinka another experienced player.
Without understimated Humbert and Sinner I like to see Murray and Wawrinka advance to Final, and there will be two experience players who tried to prove that they can still compete with young players.
That will be a perfect ending for this tournament. Wawrinka is one player who has lost his standings because of injury as well, he stopped Sinner's run here, winning 6-3/6-2. Murray vs Humbert next and hope that Murray win so that we can see Wawrinka vs Murray in the finals.
Murray has a higher chance of winning against Humbert. I really like to see a classic match between Wawrinka and Murray but it would only happen if they both get it to the finals though.