Klopp will step down as Reds manager at the end of the season.
The German has previously said that he will not coach another team for at least a year, and that he may have coached his last team ever.
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But Babel believes Klopp could return sooner than thought.
"He will try to relax, in a good environment with his family, before he goes back to work," said Babel, according to the Daily Mirror.
"If you look from the outside, and that I know Jrgen Klopp, he is far from finished. I think he will be bored within six months and he will want to work again."