Nani was stretchered off the pitch following a high tackle from Jamie Carragher, who was not sent off for the challenge.
“I don’t know what Carragher was thinking but I do know what he did was not football,” said Nani.
“He came to apologise after the game. But I was not happy.
“It is the second time he injured me. Before, he put me out of the game for two months. He always tackles like that.
“I don’t want protection. I just want the referees to be fair. If it is a red card, they have to give it. If they give the card, the next time the player doesn’t make the tackle.”
Nani returned to action for the Champions League victory over Marseille on Tuesday night.
“When I saw my leg for the first time, I thought my season was finished. That is why I was crying,” he added.
“Afterwards, the doctor saw my leg and said I had been lucky because it just needed stitches and I would be out for two or three weeks. He is surprised that I could recover even quicker.”
