Barcelona are prepared to bid €100 million for teenage RB Leipzig defender Dayot Upamecano, according to Telefoot .
Upamecano has become a regular starter in the Bundesliga this season, and the Catalans see him as the heir apparent to 31-year-old Gerard Pique.
Manchester United, Bayern Munich, Arsenal, and AC Milan are also following the 19-year-old Frenchman closely.
