Stuttgart are chasing Tottenham captain Younes Kaboul.
Kaboul has been made available by Spurs this month and the Mirror says Stuttgart's interest could spark a swap.
Timo Werner, 18, became Stuttgart's youngest-ever player in 2013 and the youngest player to score a Bundesliga brace a few months later.
Spurs are keen and are ready to ask if Stuttgart will include him in any deal for 29-year-old Kaboul.
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