During yesterday's 0-0 draw, Totti followed in stoppages for lashing out an elbow on his former teammate Mexes.
"Totti is friends with Mexes, so I think he didn't realise who it was behind him. He was dragged back two or three times and lost his cool.
"It was a shame to see Muntari sent off too, because it would've been better for all of us to play to our best. I wanted it to be a real test ahead of the Coppa Italia Final with Lazio.
"I didn't see the incident with Kevin Constant, but my players told me it was a clear penalty. It was close to the goalline referee, so I expect he had a good view."