Hamann told Leo Vegas: "If Harry carries on the way he is, and continues to be rarely injured, he could play for another four years and score over 100 Bundesliga goals. There aren’t too many players who have achieved that.
"With every season he is always up there in the rankings for goals and at Bayern, they have always had strikers like Robert Lewandowski who scored a lot of goals. Certainly, if he stays here and keep scoring goals then it won’t do his reputation any harm."