intersquad
An intersquad is a game (in sports) played between your own team. For example, an intersquad in soccer, baseball, etc: one team breaks up into two teams to form an opposition (same team vs same team).
John: What are we doing at hockey today?
David: We're playing an intersquad.
John: Darn! Now, I have to play well to impress the coaches.
David: We're playing an intersquad.
John: Darn! Now, I have to play well to impress the coaches.