Gael Kakuta will play at Sevilla side next season after the Premier League champions confirmed an agreement with La Liga side for the transfer of the French forward.
The Premier League champions signed the 23-year-old winger in 2009 at the age of 16 as a prospect for the future in a controversial deal from Lens that nearly cost the Blues a transfer ban, with Fifa suspending them for two windows before the Court of Arbitration for Sport overturned the punishment.
Having been a regular in the French youth teams, Kakuta quickly made his name in the Chelsea academy before former manager Carlo Ancelotti handed him his first-team debut during a Premier League game against Wolverhampton Wanderers in 2009.
The Blues opted to send him on loan to Fulham, Bolton Wanderers, Dijon, Vitesse Arnhem, Lazio and Rayo Vallecano during the successive seasons in order to complete his development.
And even though the winger has proved his worth during an impressive campaign in La Liga at Rayo, Jose Mourinho has now opted to part ways with him on permanent deal as his options to play at Stamford Bridge looked limited.
After scoring five goals and providing seven assists for Rayo last season, Sevilla recently confirmed they want the player and were in advance talks with Chelsea to sign him.
"The deal is very close and we can confirm it in the coming hours," club president Jose Castro said earlier this week.
And now the club have confirmed the deal through after according to Marca, agreed to pay €3.5m (£2.5m, $4m) plus add-ons to the Blues for his signature.