Manchester United are prepared to move for RB Leipzig defender Dayot Upamecano.
United plan to sign Upamecano for a bargain £36.5million next summer.
BILD reports the RB Leipzig centre-back's release clause will drop to the figure next year, potentially sparking a transfer battle.
The Frenchman was being monitored by a host of Europe's top clubs during the summer transfer window.
His old contract had a release clause of £54m and would have expired next summer.
But after nobody paid up, Upamecano signed a new deal until 2023 with the reduced release clause coming into force in 2021.