But the German insists he's happy where he is.
Klopp has committed himself until 2018 and he was on top form as he explained his decision to the media at a press conference.
"It's an honour when one or two other top clubs think that you're doing a good job, but to be perfectly honest, I'm not the kind of person who constantly wonders whether the grass may be greener elsewhere," he said.
"It's no cliche when I say that it's always important in life to be in the right place at the right time, and for me, Dortmund is the perfect place to be."
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