There is an existing thread on the football forum:
Kang-In Lee - Valencia Prodigy
Can play CM, LM, LW, CAM Mallorca has been using him on the left-sided midfield/winger primarily this season.
Very good at dribbling, ball retention, passing. He's the talisman on a mid-table Mallorca side which would be at the bottom of the La Liga table without him.
Fbref stats - Kang-in Lee
I think he'd do well in deputizing for Eriksen or Bruno. Very much compared to David Silva in terms of technical ability.
Would be a welcome signing and quite reasonable as his buyout is listed at €20M.
I believe it would be better for his growth if he went to a mid-tier PL team like Wolves or Villa,
but then again if you're looking to buy cheap and develop - now would be the time to buy.
According to Matteo Moretto, we had someone make 1st contact directly with his agent - to gauge interest from the player in coming to play for us.
This is pure speculation on my part, but Kang-in grew up idolizing PJS so if United came knocking, he'd probably be receptive.