So I'll start listing players from the time Ronaldinho left Barcelona (2008).

These are all the players we had let go from then, and had enjoyed success elsewhere. Just imagine our squad if the RM management weren't so stupid and kept these players.

Antonio Cassano
Robinho
Roberto Soldado
Julio Baptista
Fabio Cannavaro
Javi Garcia
Gabriel Heinze
Michel Salgado
Klass-Jan Huntelaar
Alvaro Negredo
Wesley Sneijder
Arjen Robben
Ruud van Nistelrooy
Rafael van der Vaart
Raul
Guti
Ezequiel Garay
Nuri Sahin

And this is why I hate RM management. They're SO BAD with treating and respecting players properly.

^ He should have stayed at Liverpool.

@Enjoyneed

Owen left RM because he failed to live up to expectations. Perez bought him because he was a previous winner of the Ballon d'Or, but he only scored 16 goals in 45 appearances (even with the likes of Zidane and Figo playing him through balls. It still wasn't a bad record, as he was getting used to a new country and a new playing style, as it is incredibly difficult to score against claustrophobic Spanish defenses that throw every living player in the penalty box, but he still didn't do as good as he was expected to. :/

No skin off my back though. I didn't really care if Owen stayed or not. Like Ramaboy said, he ought to have remained at L'pool and become one of their all time greats.