Dirk Nowitzki‘s offseason humor was on full display after trolling a fan on Twitter early Sunday morning.

After tweeting a poster of his pro celebrity tennis classic at 4:51 a.m. EST, a follower asked:

https://twitter.com/Reziocomet/status/774894018153119744

The 38-year-old German international couldn't help himself:

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Assuming Nowitzki was in his native Germany by the time of the tweet, the time difference between that and Los Angeles, where his follower is from is nine hours.

This is just the most recent of Dirk's incredible Twitter commentary, from his response to a critique of his running form to his discovery of the Dirk caveman meme, he just might have the best NBA Twitter feed around.

Never change your ways, Dirk Nowitzki.

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