Manchester United have placed Jadon Sancho at the top of their list of transfer targets and are willing to break the bank to sign the English teenager.
Senior Old Trafford sources believe former Manchester City trainee Sancho could become one of Europe's top players for the next decade and are willing to pay in excess of £60m to bring him to Old Trafford next summer.
United's efforts to sign Sancho will alarm City officials who appreciate they made a big mistake when they allowed the London-born youngster to leave for Germany in an £8m move in August 2017, with the 18-year-old now established as one of the star players in the German Bundesliga.
Interim United boss Ole Gunnar Solskjaer has hinted he is keen to recruit players with pace and trickery in wide positions, with Sancho ticking those boxes as he eyes up a return to England.
City are reported to have a sell-on clause in the contract they agreed with Dortmund when they signed Sancho, so any move to United would see the Old Trafford club inadvertently handing over cash to their local rivals.
Meanwhile, Romelu Lukaku believes United's squad players have proven their "desire" to maintain the club's pursuit of a top-four finish while a number of high-profile injured team-mates return to fitness.
With three of United's first-choice frontmen absent in Jesse Lingard, Marcus Rashford and Anthony Martial, Lukaku stepped up to the plate with two goals in Wednesday's 3-1 win at Crystal Palace to further interim manager Ole Gunnar Solskjaer's reputation.
Lukaku said: "It was time for other players to step up, which we did.
"We won the game and now we have to move forward to the next game (at home to Southampton on Saturday), hopefully keep the same level, win games along the way, and when the injured players come back, that they help us to get where we want to get.
"I'm happy with my goals, happy with my performance, but I'm happy with the win."