I had the same situation...my player got yellow, I made a sub...
My second player got yellow, I made a sub...
Then my third player got yellow, I wanted to sub, but he got second yellow faster, than I managed to make a sub...
It seemed like there was a red card waiting for me before the game even started...
NB! All the cards were given to those players, which I can't replace for next game. I have to change the whole formation now...