Dillon Phillips has joined Cardiff City for an undisclosed fee.
Lee Bowyer wished the Addicks’ academy graduate well following his departure.
Phillips joined the club’s esteemed academy at the age of eight and progressed through to the Charlton first team, playing 102 games for the club.
The Charlton Manager said: “I gave him his opportunity and he grabbed it with both hands and didn’t let go. Now is time for him to move on. He has been exceptional for me and I can’t fault him in any way. He’s made save-after-save, has been great around the place – very professional. He’s worked hard and he’s got his reward for working hard.
“This club is very good at bringing people through. He started at the academy and slowly but surely came through. Andy Marshall has worked really well with him and improved him a lot, so hopefully he keeps that work rate up and keeps progressing.
“We’ve got Ben Amos, who is a good goalie, and Ashley [Maynard-Brewer] as number two – so we focus on looking forward.”