The Algerian, named PFA Player of the Year, is the subject of big-money bids, with Manchester United and Arsenal the latest to show interest.
The champions have offered a new deal worth £100 000 per week.
Speaking of United, Juventus are continuing their pursuit of the Red Devils’ fullback Matteo Darmian.
According to Calciomercato.it, the Serie A champions have made the 26-year-old one of their top transfer targets, despite him only arriving at Old Trafford last season.
In other news, Barcelona have beaten the likes of West Ham United to the services of Samuel Umtiti.
According to Le Dauphine, the Lyon defender has already agreed terms with the Catalans and will join for a fee around €30-million.