United boss Ole Gunnar Solskjaer is desperate to bring back the good times at Old Trafford.
After finishing sixth in the Premier League, the Norwegian has been tasked with bringing the attacking flair back.
The Norwegian coach wants a pacy attack and has already brought in the speedy Daniel James from Swansea.
The Welshman could go straight into the side along with Marcus Rashford and Anthony Martial – but that leaves Lukaku on the sidelines.
Solskjaer told the Belgian that he is no longer first-choice, but Lukaku does not want to play second fiddle.
The former Everton forward is being eyed by Antonio Conte at Inter Milan, who has already spoken out on his desire to bring him to the San Siro.
But as of yet, Inter have not stumped up the cash needed to sign the 26-year-old – with United demanding £90m.
The Red Devils are growing increasingly annoyed by their lack of action, with time running out in the transfer window.
United want Inter to hurry up so they can sign a replacement and according to The Times, that man is Lille forward Pepe.
Liverpool have been monitoring the Ivorian for some time but do not want to spend big this summer.
Lille have quoted teams £70m for the 24-year-old, who scored 22 goals and assisted a further 11 in Ligue 1 last season.
And the Reds are not interested in splashing out but United have held progressive talks with the player.
They are happy to use the funds made by the Lukaku sale on Pepe, whose pace would fit in well at Old Trafford.
Lille president Gerard Lopez admitted recently that Pepe is on his way out this summer.
Lopez told La Voix du Nord: “In terms of departures and arrivals, if a player leaves, we will go and get what we need.
“For Nico, it is almost done and he could have left last summer.
“It is true that there are big offers and big clubs in for him, so I think [he will leave]. Aside from that, you never know in football.”