Man City manager left fuming over Kompany ban
Kompany will now be missing for four games for the Citizens, a huge blow for their title chances this year.
Despite the red card punishment normally guranteeing a three game suspension, the FA added an extra game as Kompany has already received a red card last October.
“I was confident about the appeal for Vinnie because he took the ball – he did nothing," Mancini said of his failed appeal.
“In 30 years, I have never seen a sending off for a tackle like this. I can’t understand it. For me, he won the ball fair and square, no? If it was a dangerous tackle, Nani, who was there, would have said something.”