So I decided to make a post on players whom your team shouldn't have let go of. I anticipate a pretty long list from an Arsenal fan! xD

Here's mine:

Ronaldinho
Henry
Eto'o
Deco
Bojan 
Toure
Milito

....

you guys?

@Golden
You are talking about class players and no one can doubt it!
But Porto got pretty much money from their transfers,so it was possible to replace them with Players of the same class..
I hope you understand :)

@Don,

Yeah, it's just a shame we have to find these quality players all the time because we sell others. So we never really stay at that top level where we can fight for the CL every year (except in 2004 when we had Pepe, Carvalho, Ferrreira, Bosingwa, Deco, Meireles etc., plus Mourinho as a manager). Porto as a club won't be able to exploit the top class players' full potential since they won't be there forever when we keep on selling, if you see where I'm getting.

@rama at girst I thought we would eventually regret selling olic because he was a great fighter, but we got mandzukic to replace him, so that's ok. contento is still part of our squad

@rama

Ronaldinho -  If he didnt leave we wont see Messi's greatness today plus he was busy partying 
Henry - Time for him to go he isnt getting younger anymore 
Eto'o - I agree with this one no doubt about it
Deco - Same with Ronnie
Bojan - Overrated his glad we sell him to Roma
Toure - Hmmm pretty hard decision but im happy with Busquets at the moment
Milito - Disaster at the back

Addition:

Zlatan Ibra - I loved his time at Barcelona never gonna forget him
Maradona - If only he stay at Barcelona in 80's what will happen to the team?
Ronaldo *El Fenomeno* - What IF...

About Southampton 3 of those players are playing the wing position

Roma bought him last year with a buy back clause now look where he is now loaned to Milan and sitting on the bench while watching El shaarawy and Balotelli playing together