After weeks of transfer no-goes, the former Bayern Munich star would be an outstanding option for Slaven Bilic's squad.
Mirco Antenucci left Leeds United this summer on a free transfer.
Watford have been linked with Sofiane Boufal.
The agreement strengthens the club's presence in South Korea, and emphasises the commercial value of Heung-Min Son.
HITC Sport understands Conor Grant heading for Valley
Conflicting reports are emerging about Aston Villa's move for Bristol City striker Jonathan Kodjia.
Sunderland are reportedly keen to make David Moyes their new manager.
Joe Allen is reportedly closing in on a move to Stoke City.
Leeds CEO signed Reece Wabara for Barnsley last summer.
The Northern Ireland captain is back in training with Southampton after the Euro 2016.
Leicester City fans had a mixed reaction to drawing in form Leeds in the cup.
Arsenal's young talent made his debut - but at wing-back.
Leeds United's warrior says he will give everything for the club.
Tottenham supporters are encouraging the 2016/17 flop.
Tottenham Hotspur striker Harry Redknapp didn't hit the ground running against Barnsley.
Leeds United dumped Premier League side Burnley out of the Carabao Cup on Tuesday night.
Leeds United are next in action this weekend, when they take on Ipswich Town.
Mateusz Klich was fantastic in Leeds United's win over Burnley in the third round of the League Cup on Tuesday night.
West Ham United strolled into the fourth round of the Carabao Cup with a victory over Bolton Wanderers.
Leeds United ace Hadi Sacko impressed against Burnley.