And at a time when the Blues want to build momentum as they attempt to keep hold of their faint hopes of a play-off spot, it’s hardly ideal.
He’ll no doubt be a big loss for tonight’s game against high-flying Oxford.
But what exactly has the winger done to pick up so many bookings and his second suspension of the season?
Some fans point to petulance on the pitch, while others often highlight how his obvious passion can get him into trouble on occasions, too.
There will be a bit of hard luck thrown into the mix as well.
But, in truth, it’s a combination of the above that has done Curtis no favours this season.
Here’s we have a look at what the Irishman did on each occasion to make his way into the bad books of the refs!
9. Burton (foul)
Curtis goes into Willian Kokolo late and gets a booking - he’s now one off a two-game ban at this stage. Photo: Robin Jones
10. Fleetwood (diving)
Curtis is certainly fouled but rather acrobatically falls down which prompts the ref to book him for diving. He’ll now serve a two-match ban. Photo: Jason Brown