SCOTLAND international Oliver Burke has been warned he's not performing to his full potential in the Bundesliga by Werder Bremen's own technical director.
The former Celtic loan forward completed a free transfer to Werder Bremen in the summer, after previously costing £28 million in combined fees when RB Leipzig and West Brown signed him.
He initially made an encouraging start by scoring in consecutive games against Stuttgart and at Borussia Dortmund in the German league.
