Jose Mourinho explains why Manchester United have done this deal
Manchester United announced yesterday that Johnstone, 23, had signed a contract extension until 2018.
Goalkeeper Johnstone is the No.3 at Old Trafford behind David De Gea and Sergio Romero.
He hasn’t played a first-team game for the club but has been on the bench for EFL Cup and Europa League games against Northampton and Zorya Luhansk.
Mourinho has been impressed with what he’s seen and said: "Sam is a goalkeeper with great potential.
How Manchester United could line up next season if they sign Antoine Griezmann Sunday, 16th October 2016 THIS is how Manchester United could line up... read more
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