Retiring jerseys in dynasty mode?

I use chicago bulls in dynasty mode and have pippen as a player, when he retires how can I retire his jersey? Is it possible?

you can't do it, it will come automic or it won't come

Yeah, the retire jersey thing is weird, 9 years later in my LA franchise, a message popped up saying: LA Lakers retire Shaquille O'Neals Jersey. Not even a cut scene of it being raised or anything. Plus I drafted a player with the number 34 and he was allowed to play without any problems .

Shouldn't it have some kind of thing that says, choose another number or somme somme?