You were sitting with April and you heard Yelling from the training room and you and April walked over and saw them yelling over their teams. Raph and Leo: TEAM A IS BETTER

Donnie and Mikey: TEAM B IS BETTER you sighed and asked them why they were yelling and they told you that they were making little brothers vs big brother teams Team A was obviously leo and Raph because they were the older brothers and team B was obviously Donnie and Mikey the little brothers