Replacing such a defender, then, will be a difficult task for Bayern, and Kahn has told Sky Sports that they have only themselves to blame as competition heats up.
“The way he's playing now, at the very highest level, it's not just going to be expensive, not just very expensive, it's going to be very, very expensive for Bayern," he said. "The question that always arises is: why did you let Dayot Upamecano enter the final year of his contract in the first place?”
“The only explanation is that Bayern weren't so happy with him a year or two ago. Now he's performing at the top of his game. When you're in the final year of a contract, you're in a very bad position as a club unless you pay a lot of money.”