FIFA 15 players on PC are reporting a rather strange bug that sees all players starting a game and immediately rushing towards the centre circle. You can see the screen below, or head to YouTube and see it in an actual match.
EA has posted a selection of possible fixes, but none of them seem to be working at the time of writing. The game is out in North America already have launched there yesterday, with release planned in Europe on September 25. Hopefully EA will have it sorted by then.