Julian Brandt trained with Kai Havertz at Bayer Leverkusen on Thursday.
Leeds United have submitted a official bid for the free agent.
Negotiations with Leverkusen over Brandt’s contract remain ongoing.
Leeds are understood to be at the forefront of the race to sign him before his contract expires.
This comes as multiple reports show the English club’s determined pursuit of the German midfielder.
Both clubs are said to be evaluating their options carefully.
Brandt’s versatility and pace have attracted interest from several European teams.
Leeds’ manager praised the German's inventiveness and work rate.
If the deal goes through, Brandt could sign with the English side before the summer window closes.
Fans are already speculating about his potential role in the midfield.
The transfer could also unlock funds for Leeds to bolster other areas.