It's possible.
Step1:
Sell off all your squad until you have just the required 14 players.
Step2:
Train the 14 players till they have <30% condition in order to increase the risk of injury
Step 3:
Play friendly upon friendly until 4 players out of the 14 get injured (it will only be a matter of time before this happens)
Then you will have just 10 of the required 11 eligible players to start a match