If Mahrez had wanted to go last summer he would have gone. His agent would have put feelers out to Barcelona and the rest and obviously no-one was interested.
Maybe he thinks because he had a mostly crap season, like most of the rest of the team, we will be happy to sell him cheap.
We do not need to, particularly as nearly all of whatever we sell him for is profit. This is not a depreciating asset that we need to cut our losses with. If Mahrez wants someone to come in and offer big bucks, then he has to start playing again like POTY.
If he does then he can go in January to someone still in the Champions League finals.