Fulham boss Martin Jol has hinted of a sell on fee involved with Kerim Frei's move to Besiktas.
The Swiss winger was sold on Friday.
"As a club, because of the structure of the deal, we are still invested in his future and what we believe he'll be able to achieve in time.
"I know he'll be much happier playing, so we wish him all the best," said Jol.
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