Speaking to Sport BILD, Kahn said: "The susceptibility to injury is greater. Manuel can still show his qualities. But at this age, a full season in three competitions: That's a huge challenge for the body. At some point, you reach your natural limits. You have to weigh things up: 'Do I go to the coach and take some time off to recover?' He doesn't have to prove anything to anyone anymore! What matters to him is delivering top performances in the big games.
"Manuel is experienced enough to assess himself. I don't know what drives Manuel. I watched Cristiano Ronaldo at the Nations League and wondered: 'What motivates him at this age? Does he want more wins and records?' Everyone has to decide that for themselves."