If 5-a-side counts then darren powell (Former palace CB) played for a team against mine for two or three seasons towards end of his playing career, he was pretty good but got very stressed when a mate of mine (who's 20stone +) marked him out a game lmao.
Again 5-a-side, one week i couldn't make it and Wayne Routledge (while contracted to spurs) turned up to play for opposing team, mid season, no shin pads etc, although did have a team of massive fellas who threatened to batter you if you tackled him. Apparently he was ****e until the last five mins when he rounded the team and scored a couple of times lol.
But best player was someone I went school with who ended my hopes of playing GK scoring from 30 yards in the inter-tutor (School) cup final past me to make it 1-1 (We lost 2-1)
She was legitimately better than or at least as good as any boys at my school, although none of them went on to play for England...