guess it could be possible it was a tank
kei did say in an interview that he wanted matches but that he also didnt want to push himself to hard before the US open and he did win 4 matches here. (2 in qualies 2 in main draw
It's actually his 6th match, he won 3 in qualies and 2 in main draw.
I know it's not the right thing but I kinda hope it was a bit of a tank from Kei...because it seem like he had no chance to win at all.