Hmm, it sounds like your players were serving out a longer suspension for more than a minor violation.

For example, a straight red card would ensue a 2 match suspension for the player.

To add to that a yellow card and a straight red card in the same match also result in a 2 match suspension. If the player already has a yellow card from a previous match in the same competition then he will also serve the one match suspension for the accumulation offence, making that three matches in total.

Hope that explains it, dzilla