Zack Burns is captain of the Eckbert High School soccer team. It's a new school year and since their other striker graduated, there's an empty slot on the team. When the Principal tells Coach Latimer he's found their new player, the whole team are impressed by his achievement file.
Alex Martinez scored 78 goals last season, so with him the EHS team will be unbeatable.
So imagine their (and the Coach's) shock when Principal Stevens shows up at practice with their new player, and it turns out Alex Martinez is a girl.
A very attractive girl.