Not sure for league cup.
.com seems to think it works in the cup too:
Rule changes this season also mean that if the scores are level after 90 minutes, then a fourth substitute can be brought on.
Was gutted when he went down, as he seems like the real deal, glad he'll be back soon [emoji106]
Our team is definitely on the short side, we definitely need to add some height....or just buy Crouch and split him into 3
He'll leave after an argument with mike in early Sept, colback will step in as player manager until christmas. At the bottom of the table, nigel pearson will then sign a 4 year deal in january with john carver as assistant manager and we'll be on our way back to the champo to reunite with the mackems for the next 5 years