The 27-year-old, who is playing for Tunisia at the World Cup in Russia, spent the 2017-18 campaign on loan at Rennes in France.
Khazri has been on the books of Sunderland since January 2016 when he joined from French side Bordeaux for a transfer fee reported by The Daily Mail to be worth £12 million.
The former Bastia star has suggested that he wants to carry on playing in England next season.
Khazri told The Daily Mail: “It's not easy for a Tunisian to play in the Premier League, so I feel privileged because of the opportunity I've had.
“Now I am focused only on the World Cup, but I would like to continue playing in English football if I can. We'll see. I will be open to all ideas and listen to everything.”
Blow for AS Roma?
According to The Chronicle, AS Roma are among a number of clubs interested in securing the services of the Tunisia international in the summer transfer window.
Eusebio Di Francesco’s side finished third in Serie A last season and have earned an automatic spot in the Champions League group stage for the 2018-19 campaign.
Khazri’s comments about playing in the Premier League next season could be a blow to Roma in their (reported) quest to sign Khazri.
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