Gokhan Inler has still not completed his move to Napoli and it's reported the sticking point is his sponsorship deal.
The Udinese midfielder has been in advanced negotiations for some time and was expected to be at the San Paolo by now after Juventus seemed to pull out of the race.
Instead, the Gazzetta dello Sport claims talks have ground to a halt over his current sponsorship deal with Nike.
They also sponsor the Switzerland team, but Napoli insist on controlling Inler's image rights as part of the contract.
Should the midfielder not make the move to Napoli, the club would turn its attention towards another Swiss player, Blerim Dzemaili.
This involves talks with two clubs, as Dzemaili is co-owned by Parma and Torino.
Other alternatives include Wilson Palacios of Tottenham.
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