Ralf Rangnick suggests Manchester United could sign up to 10 players in transfer window after Liverpool thrashing

Manchester United interim manager Ralf Rangnick suggested there could be up to 10 signings at the club this summer following a 4-0 thrashing by Liverpool.

Liverpool pummeled United 5-0 at Old Trafford in October and almost matched that scoreline on a comfortable night at Anfield, where United's dwindling goal difference took them down to sixth in the Premier League table.

Rangnick described United's supine performance as 'embarrassing' and reiterated Liverpool's superiority is more than six years in the making, dating back to Jurgen Klopp's appointment in October 2015.

Read more: United player ratings vs Liverpool

Rangnick likened Liverpool's squad to a fleet of Formula 1 cars and stressed the league leaders are 'six years ahead of' United.

"We have to be critical with ourselves because the way we played in the first 45 minutes was in no area what we wanted to see and what we wanted to play," Rangnick said. "Since we had all our defensive midfielders, natural ball-winners, not available we decided to go with the back five.

"I decided directly after against Norwich, where, if we are honest, they had five or six massive opportunities to score, and had it not been for David [de Gea] in goal we could have easily conceded with three or four goals against Norwich at home, so that's why I decided an extra central defender.

"I don’t think at all the first half had anything to do with our formation. It had to do with the way we played the game and the way we conceded the first goal was definitely not part of our game plan to allow them a transitional moment like the one that happened.

"Being 1-0 down, it affected our confidence level again. The first-half was not good enough, We changed from a back five to a back four again (at