Upamecano is nearing the end of his current contract with Bayern Munich, which expires in a year's time. German publication BILD suggests that Real Madrid view Upamecano as a potential signing for next summer, taking advantage of the Bosman rule.
Bayern Munich has attempted to extend Upamecano's contract on several occasions but negotiations have stalled. The club reportedly finds his salary demands too high, especially given their goal to manage the team's wage bill.
Other clubs, including Manchester United and Paris Saint-Germain, are also keeping a close eye on the situation.