Steven Gerrard accepted 'full responsibility' for his actions after he was shown a red card during Liverpool's 2-1 defeat to Manchester United on Sunday.
With the Reds trailing 1-0, the captain was introduced as a half-time substitute during the Anfield clash - but was dismissed just seconds after coming on following a challenge on Ander Herrera.
Afterwards, Gerrard spoke openly about the decision and offered an apology to his teammates and Liverpool supporters.
He said: "I need to accept it, I think the decision was right. I've let my teammates and the manager down today, and even more importantly let all of the supporters down.
"I take full responsibility for my action. I've tried to jump his tackle when I've seen his studs and I've reacted wrong.
"I've been in the game long enough to know when you do something like that...especially with the timing of the game - 45 to play with a great opportunity to get back into the game. I take full responsibility for it."
Gerrard added: "I don't know [what caused it]. It was probably just a reaction to the initial tackle, but I don't think I should say too much more on it, really.
"I've come to speak to apologise to everyone in the dressing room and all of the supporters all over the place because I take full responsibility for today's result."