The Sweden international has been in sensational form for the Portuguese champions and he has netted 67 goals since joining them last year.

24 of those have come in the current campaign and A Bola claim that United scouts have been monitoring him since the start of the season.

The Red Devils want to add a marquee striker to their ranks and they are most interested in landing Gyokeres ahead of other possible suitors.

The 26-year-old has a release clause worth €100m in his contract, but reports claim that Sporting could sell him for €70m plus add-ons.

Barcelona and Manchester City are also keeping tabs on his situation, but United could have the upper hand due to Ruben Amorim 's presence.

Amorim brought the best out of Gyokeres at Sporting and he recently left the club to become the new head coach for the Red Devils.

The chance of an immediate reunion could be tempting for the striker.

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