Manchester United midfielder Ryan Giggs accepts Liverpool are a genuine threat to their Quintuple hopes.
After Saturday's mauling at Old Trafford, Giggs admitted: "Liverpool are a strong team and on their day they can beat anyone - not many teams win at the Bernabeu after all.
"They have genuine world class players and where once they relied on Steven Gerrard there's now Fernando Torres, Xabi Alonso and Jamie Carragher.
"There is quality all over the pitch and I don't think there's any doubt that this current side is stronger than previous ones.
"When they beat us at Anfield earlier this season Gerrard and Torres weren't even playing, so they do have talent elsewhere.
"The title race is certainly not over - any little hiccup we have will give encouragement to the other teams behind us."