If you want to exclude oldies like Gigi (like what JuveJay did, U23s from year 2006), then this:
Ronaldu
Messi
Xavi
Iniesta
Robben
Ibra
Pirlo
In no particular order. These are definitely there imo, then you have a bunch of debatable ones, like Chiellini, Ramos, Lahm, Alves, Marcelo, Mascherano, Modric, Xabi, Ribery, Neymar, Suarez etc depends on who you support and hate i guess
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And i just realized Ibra, Pirlo and Xavi are such oldies lol