Classic story: vampire guy and werewolf guy start a basketball team; a dog joins; a clown comes after him. It's your archetypal Air Bud Situation. If you've heard it once, you've heard it a million times.
Franky Fred loves to play basketball, and is the best player in the neighborhood until one day, someone else shows up and takes Franky on! The new kid is better and beats Franky in a one-on-one. Now Franky Fred is mad and demands a rematch.