Brighton's interest was first reported by The Athletic earlier this month. Yun and winger Yang Min-heyok are seen as two of the brightest young talents in their homeland. Yun’s fellow winger joined Tottenham from Gangwon at the start of the January transfer window, and he has been loaned to Championship side Queens Park Rangers.

Unai Emery has revealed Aston Villa could bring in three new players before Monday's 11pm deadline, but admits the club's busy final three days in the market is "not normal".

Aston Villa have enquired about Manchester United want-away Marcus Rashford, with Unai Emery keen to sign him in the wake of Jhon Duran's £77.5million move to Al-Nassr