Manchester United manager Sir Alex Ferguson was in bullish mood after his side's 11-match unbeaten run in all competitions came to an end at Anfield.
Goals from Fernando Torres and substitute David Ngog secured a 2-0 victory for Liverpool after a run of four successive defeats.
And while Ferguson admitted the best side came out on top, he said: "Part of the challenge is to get over disappointments. Last season we lost at home 4-1 to Liverpool which was a travesty but we went on to win the league."
Ferguson believes his side did not get a fair crack of the whip from referee Andre Marriner against Liverpool.
Nemanja Vidic was sent off for two yellow cards and Ferguson questioned a number of the official's decisions, claiming he was influenced by the crowd.
Ferguson felt Vidic was unlucky to be red-carded and Liverpool defender Jamie Carragher should have been dismissed after a challenge on former team-mate Michael Owen when he burst clear.
He said: "It is a very difficult atmosphere here. There was a wounded animal aspect to the game and it was something we did not overcome.
"I think it affected our players and it affected the referee. There were so many controversial things that happened we have to feel aggrieved at some of them.
"The Vidic booking was the worst decision. It is a foul fine. But the player has played on, he won the second ball and knocked it for a throw in and got booked. It put Nemanja under pressure.
"The most controversial decision was Carragher bringing down Michael Owen. He was clear through. The laws of the game were altered to prevent professional fouls of that nature and if Carragher goes off, he is their best player and their captain. It would have been a different game. They would have been under pressure."
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