Perhaps it matters some, but at least not significantly. I was playing a match and in the beginning possession was 51% to 49% to my advantage. My opponent got a player sent off in the 13th minute, yet the possession remained very even throughout the game, percentages being the same 51 to 49 in the end of the game. Earlier in the season too, I got an early red against a tough team and I was surprised how l didn't seem to lose possession.
Anyone noticed similar stuff?