Alfie Doughty has joined Championship side Stoke City for an undisclosed fee.
The winger, whose contract was due to expire in the summer, came through the Addicks academy and made 41 appearances for Charlton scoring three goals.
Manager, Lee Bowyer, was pleased that the club have been able to secure a good deal both Charlton and the player. He said: “Alfie is a very talented player who has improved a lot in the last 18 months. He has worked hard, been professional and given everything for the club every time he has pulled on the shirt.
“He wanted to come back on loan with us and help us finish as high as possible but by the time he’s fit again there won’t be many games left in the season unfortunately. Alfie has been a pleasure to work with and hopefully he’ll take the things he’s learned here and go on to do very well. We’re sad to see him go but it is a good deal for us as a football club and for Alfie too.”
The 21-year-old said: "I was at Charlton for 15 years, so leaving has been tough. I can't thank the club enough, coming through the academy. I'd like to thank Bow as well for giving me the opportunity. It's not easy to bring in someone who hasn't had men's football, so I'm very grateful for the opportunity.
"There is so many others I'd like to thank who have been so influential to my progress, people like Steve Avory, Jason Euell and Peter Lodge. I could sit here all day thanking everyone who has helped me because there is so many. Charlton has been my home for 15 years and will always have a special place in my heart."
Everyone at Charlton Athletic wishes him well in his future career.