Didier Drogba will wear the number 15 shirt for his second spell at the club.
The Ivorian re-joined Chelsea on Friday and will take the squad number he was originally allocated when he signed in 2004.
Mohamed Salah, who wore number 15 after signing from Basel in January, will take the number 17 jersey which has been made available since Eden Hazard switched to number 10 ahead of the forthcoming 2014/15 season.
着返15號~