Liverpool believe referee Anthony Taylor took pity on Manchester United when he officiated their 5-0 win over the Red Devils on Sunday.
A source close to Jurgen Klopp told the Athletic that the Liverpool manager was left feeling frustrated after the game as he thought at least five of Ole Gunnar Solskjaer's men could have been sent off.
He felt that Fred deserved a red card for a head-high challenge on Naby Keita just moments before he was stretched off the pitch following a bad tackle from Paul Pogba.