The post-Sir Alex Ferguson era has not been kind to Manchester United with the likes of David Moyes and Louis van Gaal dragging the club into relative mediocrity.
Jose Mourinho was instated last summer but done little to drag the Red Devils back to their former glory but after this summer's transfer window, the mood around Old Trafford has altered drastically.
The signings of Romelu Lukaku, Nemanja Matic and Victor Lindelof have massively improved the squad and they appear to have kept hold of long-term Real Madrid target, David de Gea.
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Now, Mourinho wants to make his fourth and final signing of the summer, with the left-wing position his primary objective.
Ivan Perisic, Gareth Bale, Danny Rose and even former United hero Cristiano Ronaldo have all been linked but as of yet, nothing has materialized.
The Red Devils have been left frustrated, particularly with Perisic, and they're now going to try and inflict damage on one of their bitter Premier League rivals.
According to the Mirror, Mourinho's side have now entered the race for coveted Monaco winger Thomas Lemar who has been pursued by Arsenal all summer.
The French international is valued by the principality club at around €60m, a price which Arsene Wenger is yet to match.
Given that Mourinho's side were prepared to pay around the €50m mark for a 28-year-old Perisic, a few extra euros for the 21-year-old Monaco man would certainly be astute business - not to mention he would command a much smaller salary.
Lemar registered 14 goals and 17 assists for the Ligue outfit last season and his versatility would be crucial in helping United fight on multiple fronts.
The likes of Anthony Martial and Paul Pogba would likely be helpful in welcoming him to the club and it seems like a deal that would be hugely beneficial to both parties.
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