Jurgen Klopp cut a frustrated figure after claiming Manchester United's long-ball tactics cost Liverpool three points in a "wild" derby.
Unlike October's drab, goalless draw at Anfield, the 50th Premier League meeting of the bitter rivals lived up to the billing in terms of entertainment and energy at Old Trafford.
Liverpool looked set to give the hosts a bloody nose as James Milner fired home a first-half penalty after Paul Pogba, whose Twitter hashtag was advertised around the pitch, handled a corner in the box.
However, the world's most expensive player's blushes were saved by fellow big-name summer acquisition Zlatan Ibrahimovic heading home six minutes from time to secure a 1-1 draw.