Julian Brandt trained alongside Kai Havertz at Bayer Leverkusen on Thursday.
Leeds United have submitted a formal bid for the free agent.
Negotiations with Leverkusen over Brandt’s contract remain underway.
Leeds are understood to be at the forefront of 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 weighing their options thoroughly.
Brandt’s versatility and acceleration have drawn interest from several European teams.
Leeds’ manager praised the German's imagination and effort.
If the deal goes through, Brandt could sign with the English side before the summer window closes.
Fans are already wondering about his possible role in the midfield.
The transfer could also free up funds for Leeds to reinforce other areas.