Mills said, "As I approach my final week at Charlton I felt this to be the right time to reflect on what has been from a footballing point of view an enjoyable last 5 months.
My departure after the game at Leicester will certainly be tinged with a degree of sadness and I hope the fans will feel I have given them every bit as much commitment as when I last played for this club. Initially we had hoped to be in a position whereby we could agree a permanent move, but unfortunately this does not seem to be possible and with no resolution on the horizon, I will now be returning to Manchester at the end of this month"