Moyes reported afterwards his player had only suffered bruising to his shin but felt the damage could have been far worse and pointed the finger at Manchester City captain Kompany.
"The boy does him," Moyes told the BBC.
"He definitely sees his shin going in and stands on it. People who have been players know what I am talking about.
"I don't think it is too bad. It just looks like bruising. But they are the ones where it doesn't take much to crack your shin. The officials seemed to spot most other things. But they did not spot the big one. Referees are judged on big decisions."
In fact, Moyes was not impressed by the performance of World Cup final referee Howard Webb and his officiating team, whom he felt showed inconsistency in the way they handled the game and got a key decision wrong in the build-up to Mario Balotelli's opener.
"Overall, we found the way the officials treated us really difficult to take," said Moyes.
"We found it difficult to talk to them and found the fourth official was very much the same."