Manchester United's need for new blood at centre-back has been exposed for all to see since captain Harry Maguire limped off against Aston Villa.
Prior to his ankle injury, Maguire had not missed a minute of United's Premier League action this season, papering over the Red Devils' lack of depth in central defence.
Although the United captain has struck up a workable partnership with Victor Lindelof, the Swede looked lost at sea at times during the 4-2 defeat by Liverpool on Thursday night.
His partner, Eric Bailly, fared no better - and the shaky display will strengthen the resolve of Old Trafford chiefs to sign a new partner for Maguire.
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