New Hamburg striker Ruud van Nistelrooy has refused to rise to the bait after Bayern Munich coach Louis van Gaal said that he did not sign the 33-year-old in January because he did not think the forward could cope with the competition at the Allianz Arena.
The former Manchester United forward moved to Hamburg from Real Madrid on a free transfer last month and has been amused by van Gaal's comments.
The Bayern coach had said: "I would not oblige him (van Nistelrooy), because I just had a similar case with Luca Toni, who I let go (to Roma on loan).
"Toni could not deal with the competitive situation at Bayern. I think Ruud has the same problem. Otherwise he would have stayed in Madrid."
However, van Nistelrooy has responded by saying of his countryman: "Mr van Gaal is my friend. He is a very likeable guy. He just wants to irritate me a bit. I'm looking forward to seeing you soon in Munich."