Hart, who has been with the Reds since the 2012-13 campaign, has played 14 matches this season for Port Vale, 12 of which he has started, including nine in the league.

Hart, who featured for Liverpool in a pre-season friendly against Mainz this summer, became the Valiants’ 15th signing of the summer when he signed six days before the window cut-off.

The former Manchester United youth-team product, who can play at left-back or in left midfield, is contracted to Port Vale until the end of the season.

In other Liverpool team news, the club have made a striker approach and Klopp has personally called the player to smooth the deal.

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