Julian Brandt trained together with Kai Havertz at Bayer Leverkusen on Thursday.
Leeds United have submitted a registered bid for the free agent.
Negotiations with Leverkusen over Brandt’s contract remain ongoing.
Leeds are understood to be leading the race to sign him before his contract expires.
This comes as multiple reports confirm the English club’s active pursuit of the German midfielder.
Both clubs are said to be considering their options carefully.
Brandt’s versatility and acceleration have garnered interest from several European teams.
Leeds’ manager praised the German's creativity and work rate.
If the deal goes through, Brandt could sign with the English side before the summer window closes.
Fans are already wondering about his likely role in the midfield.
The transfer could also unlock funds for Leeds to strengthen other areas.