Liverpool's Alisson saves a shot from Manchester United's Marcus Rashford during the match Premier League between Liverpool vs Manchester United at Anfield, Liverpool, January 17, 2021. Liverpool goalkeeper Alisson Becker made two vital saves as the champions were held to a 0-0 draw at home to Premier League leaders Manchester United. Pool via REUTERS/Michael Regan

Manchester United's Paul Pogba shoots at goal during the match Premier League between Liverpool vs Manchester United at Anfield, Liverpool, January 17, 2021. Pool via REUTERS/Michael Regan

Manchester United's Marcus Rashford in action with Liverpool's Alisson during the match Premier League between Liverpool vs Manchester United at Anfield, Liverpool, January 17, 2021. Pool via REUTERS/Paul Ellis

Liverpool's Roberto Firmino shoots at goal during the match Premier League between Liverpool vs Manchester United at Anfield, Liverpool, January 17, 2021. Pool via REUTERS/Michael Regan

Manchester United's Bruno Fernandes in action with Liverpool's Georginio Wijnaldum and Sadio Mane during the match Premier League between Liverpool vs Manchester United at Anfield, Liverpool, January 17, 2021. Pool via REUTERS/Michael Regan

Manchester United's Luke Shaw is fouled by Liverpool's Xherdan Shaqiri duringg the match Premier League between Liverpool vs Manchester United at Anfield, Liverpool, January 17, 2021. Pool via REUTERS/Paul Ellis