Manchester United suffered one of their worst defeats in recent memory as rivals Liverpool piled pressure on manager Ole Gunnar Solskjaer with a 5-0 thrashing.
Mohamed Salah crowned an outstanding individual display with a hat-trick and an assist as Liverpool recorded their biggest away win against Manchester United.
Liverpool raced into an early 2-0 lead, Keita arrowing Salah’s pass home for a fifth-minute opener before Diogo Jota added a second from Arnold’s cross eight minutes later.
Salah then took centre stage, hitting a rising shot from Keita’s cross on the 38th minute before he put Liverpool 4-0 up at the break with a great finish from Jota’s assist.
Paul Pogba was brought in for Mason Greenwood at half-time.
However, the lingering hopes United had of a second-half comeback were squashed when Salah claimed his third and Liverpool’s fifth, finishing with an assist from Jordan Henderson.
It was the first hat-trick scored by an away player at Old Trafford in the Premier League since Dennis Bailey for QPR on 1 January 1992.
Man United’s misery was compounded on the 61st minute when Pogba was sent off.
Liverpool’s second consecutive 5-0 away win puts them in second on 21 points, one point behind Chelsea.
Man United dropped to seventh with 14 points.
By Brian Ayatta