Hamann cites Ronaldo's age as he questions merits of new Lewandowski contract before slamming Bayern's 'weak leadership'
Robert Lewandowski is seeing a summer transfer away from Bayern Munich speculated on and Dietmar Hamann is not convinced that the Polish striker should be offered a new contract in order to make him stay as 37-year-old Cristiano Ronaldo has shown at Manchester United that football “gets more difficult with age”.


