Draw was wide open, really could've even reached the QF vs. Roger. It was a missed chance but kudos to Denis on that one, he's no joke on the surface so it was really a great chance for both. I'm sure he moved on rather quickly though.
A quick and effective recovery hopefully!
A friend watched the match court-side, and Istomin took MTOs near the end of the fifth set. He also said that there was no sign of any pain in Istomin whatsoever.
If it was tactically deployed, then that's a shame on Istomin. It's ingrained in the game now though, so I can't complain about it. Everyone gives and takes.
It wasn't televised though, so I'm going by my friend's word, and while I trust him, I don't see it as proof enough to really hold any hard feelings on Istomin.