In his column, Hamann severely criticised Bayern's handling of Dier. He wrote: "Eric Dier will leave FC Bayern this summer. This surprises me greatly. I thought a contract extension with him was a mere formality. Bayern may not have been willing to give Dier a two-year contract plus an option for a further year, which is what he's now getting in Monaco.
"Perhaps Bayern should have been a bit more creative. Dier was needed in the second half of the season and rarely, if ever, attracted negative attention on the pitch. For me, that's always the best sign for a central defender at Bayern Munich. He also addresses certain issues internally. He was also a goal threat, scoring in the second leg against Milan. You can always rely on him.
"Dier is a player who holds a team together. When he's not playing, he doesn't complain. When he is, he performs. He's been outstanding during his time at Bayern. Together with [Josip] Stanisic, he's been outstanding in big games in recent weeks. This is a huge loss, especially with the Club World Cup in mind.
"This might also leave a bad taste in the mouth of his good friend Harry Kane. On the other hand, Kane is a professional; he has a contract with Bayern Munich, not with Dier."