I am seeing the squad of India and Australia for tomorrow's match and suddenly I realized that Australia doesn’t have any vice-captain, which means if Matthew Wade had any injury or they can’t play tomorrow's match so Australia doesn’t have any other captain, I don’t know that the match can be played without vice-captain so if you know anything about this so please share with me, it provides me information about this.
Vice capitain is just a thing that we can see on the paper and, if the captain is injured while playing then he will appoint someone as stand in capitain for the remaining play so its not a concern at all.
This isn't the first line player for both the teams that is why we don't see someone as stand in captain but most of the players captained teams in the domestic matches or franchise games so they can manage to do it.