there's never a goalkeeper who gets injured - you have to keep it real - or who causes a foul in the box to earn a penalty.

In reality you're not limited in terms of numbers, so you should just increase the number of players and force everyone to have 3 goalkeepers? Yeah.

I've had a goalkeeper injured for 3 or 4 days in the past, but I had 2 goalkeepers in my squad...

Yes, they can get injured in training like other players, but not in a match.