Manchester United have taken teenage prospect Mason Holgate on trial with his club, Barnsley, expecting the defender to leave Oakwell.
Holgate, who has also been linked with Arsenal, Aston Villa, Tottenham and Everton, has the chance to impress United's coaching staff this week.
Barnsley boss Lee Johnson had earlier said the League One club were resigning themselves to losing the 18-year-old, who can play at right-back or centre-back and is reported to be valued at around £1 million.
"There's been a lot of interest in Mason and, at this stage it looks like we're destined to lose him, but you never know what's going to happen," Johnson told the Sheffield-based Star newspaper last week. "The player can always change his mind.
"It's great for the lad to be training with Manchester United, it's a fantastic opportunity, but of course I want him to stay and really feel as though he could benefit from a full season in our first team."
Holgate made his first-team debut in December and has scored one goal in 22 games for Barnsley, but he has turned down an extension to his current contract, which is set to expire next year.
The South Yorkshire club also produced Everton and England defender John Stones and believe Holgate should stay at Oakwell to gain more first-team experience.
Johnson added: "It's an easy sell [to try and keep Mason here]. He played quite a lot of games last season, but I think the best route for him is to play 40 games for us next season and get as much experience as he can.
"There's lot of different routes to the top, but hopefully he decides to stay with us. But of course it must been really tempting to go to United or another Premier League club.
"The question then is 'How many games will you play?' You could go out on loan, but selfishly I want Mason to stay and develop more as a player here."