There was a brilliant moment before Manchester United's game against Everton at Od Trafford this afternoon.
The club had decided to rename their south stand in honour of perhaps their greatest ever player, and held an unveiling ceremony before today's game against the Toffees.
Sir Bobby was invited onto the pitch before kick-off to see his name appear at the top of the stand, and looked visibly moved throughout proceedings. Check out the video at the bottom of this article.
The Old Trafford crowd also paid tribute to the great with a mosaic that spelled out 'Sir Bobby' before the match.
The move comes after Manchester United decided to rename the north stand in honour of Sir Alex Ferguson back in 2011, in order to celebrate the Scot's 25 years in charge.
Charlton is currently the club's all-time leading goalscorer, but will soon lose that record to Wayne Rooney; the striker is just five goals behind Chartlon's record of 249 strikes for the Red Devils. The former England midfielder is also second on Manchester United's all-time appearances list, behind Ryan Giggs.
Despite his playing days being long since gone, Charlton still exerts a fair amount of influence over what goes on at Old Trafford, and is said to be one of the board members who are dragging their heels over the potential appointment of Jose Mourinho as the club's next manager.
Louis van Gaal has underwhelmed in his two years at the club, and rumours are rife that Mourinho is the man to replace him at the end of the season.
However Charlton and others are said to be concerned about the baggage that comes with the Special One, and also believe his lack of a track record for playing young players goes against Manchester United's philosophy.