Chelsea have confirmed that their 19-year-old midfielder, Conor Gallagher has left the club to join Swansea City on loan until the end of the season.
Frank Lampard's side made this known in a statement on their official website on Wednesday.
The statement read: "Conor Gallagher has returned from his loan spell at Charlton Athletic and will spend the remainder of the season back in the Championship with Swansea City.
"The teenager, who turns 20 next month, spent the first half of the campaign at the Valley in what was his first experience of senior football on loan. He has been instrumental for Lee Bowyer's side, missing just one Championship game and scoring six goals from midfield.
"Charlton started the season brightly but have won just once in their past 15 league matches, a run stretching back to mid-October, and currently find themselves just four points above the drop-zone.
"The Swans are currently seventh in the Championship table, with only goal difference keeping them out of the play-off positions. They host Wigan at the Liberty Stadium this weekend.
"Gallagher featured in Frank Lampard's first pre-season game in charge against Bohemians in Dublin, as well as our trip to Boston in May, and was an unused substitute in the Europa League final.
"He has a Chelsea contract committing him to his boyhood club until at least 2022."
Chelsea will now take on Newcastle United on Saturday in an away Premier League fixture.