Manchester United are believed to have had a £52million offer for Lille's Leny Yoro accepted by the player's club, according to reports.
The 18-year-old defender has been one of United's keenest recent targets in the position, but the Red Devils could yet be forced to fend off interest from a range of other clubs.
Real Madrid, Liverpool, and Paris Saint-Germain are also thought to be interested in making a move for the talented teenager, who is yet to make a decision about his future.
Mail Sport reported last week that United had tabled a bid that Lille is keen to move forward with, as the club prepares to move quickly to complete their transfer business ahead of next season.
As per the Guardian, Man United are in the midst of negotiating with Yoro's representatives in a bid to get the deal over the line.
Manchester United are eager to make an early move for Lille defender Leny Yoro this summer
Erik ten Hag is interested in bolstering his side's defensive ranks during the transfer window
But Erik ten Hag could yet miss out on securing the player's signature, with Real thought to be his first choice.
However, the Spanish giants - who unveiled landmark signing Kylian Mbappe on Tuesday morning - are not thought to have been keen to match United's offer, which is £42m plus £10m-worth of add-ons.
Real Madrid are believed to be more interested in waiting to recruit the 18-year-old next summer, when he becomes a free agent, which in turn will see Lille push to get United's deal over the line sooner rather than later.
Alongside Yoro, Man United are also targeting defenders Jarrad Branthwaite of Everton and Bayern Munich's Matthijs de Ligt in a bid to bolster their ranks during this summer's window.
The club are also tracking defenders including Everton's Jarrad Branthwaite to add to the side
This transfer period has already seen the club raise funds to aid future deals with the selling of academy graduate Willy Kambwala to Villarreal and Mason Greenwood - whose £30m move to Marseille has been agreed in principal.
United welcomed their first major recruit to Old Trafford on Sunday, with the signing of Netherlands international Joshua Zirkzee for £36.5m from Bologna.