The only way we will sell him is if we get his full market value. Say what you like about Ashley but he won't ever be taken for a mug in the transfer market.
But at what point does Ashley decide paying Cisse wages without him playing is worse than copping a hit of a few million on a transfer fee?
And before anyone suggests NOT paying Cisse (i.e. continuously fining him for refusing to play), just image how that might play out in the court of public opinion...
they'd be within their rights to since by refusing to play he's in breach of contract, can't expect to get the massive wages he gets without actually doing your job