Comotto says Santon should have been sent-off during Inter's 2-0 win for an ugly challenge.
"I still have the marks from the challenge," Comotto told FirenzeViola.it.
"However, I have seen worse and it will take more than that to stop me. I was expecting Davide to get a red card and I think he was too. I put in a few of those tackles when I was at Torino and I ended up with three or four-match bans.
"The referee didn't have a good game. Every debatable decision went against us, but we have to accept that, even if it costs us dearly. A draw would have been a fairer result. But we are on track in terms of the way we are playing, our determination and the heart we show.