Harry Redknapp has questioned the antics of Wayne Rooney after the Manchester United man was charged for foul and abusive language by the FA on Monday.
Rooney was seen shouting expletives down the lens of a Sky Sports camera after he single-handedly dragged United from a two-goal deficit into a 3-2 lead at West Ham.
The England forward now stands to miss the home league game with Fulham and the FA Cup semi-final against Manchester City, unless he can successfully appeal the FA's decision.
Redknapp, who may well find himself in charge of Rooney as England manager in the future, questioned the need to behave in the way Rooney did after scoring his third goal of the afternoon at Upton Park.
"I haven't heard what he said as I was driving back from Wigan but I've read what's been reported in the papers," Redknapp said at a press conference ahead of Spurs' game against Real Madrid.
"I don't know why he did that. I don't remember Bobby Charlton doing that when he used to smack goals into the top corner from 35 yards.
"Why do these young players have to be so angry with the world? I don't know why. They are getting hundreds of thousands of pounds a week.
"I respect him as a player but he is a silly boy for what he did and he shouldn't have done it."
Steve McClaren, who worked with Rooney during his time as England manager and was assistant to United boss Sir Alex Ferguson from 1999 to 2001, said Rooney must take his punishment.
McClaren told talkSPORT: "I do know that the player, the manager and everybody behind the scenes at Manchester United work very, very hard on discipline and this kind of thing, but when it happens you have to hold your hands up and accept what happens.
"Wayne Rooney is Wayne Rooney and he sometimes does things which are not very savoury, which should not happen and you have to pay the consequences.
"I know internally Manchester United is the right club and he's with the right manager to bring his game on, to keep his temperament in check."