Beyond lucky is by Sarah Aronson. I would really recommend this for ages 11-15. Ari fish is not always lucky.
Ari Fish is the luckiest when he finds a Wayne Timcoe card. When he finds it missing, he knows he'll have a bad season of soccer. But in the end, he finds that friendship, not betrayal, will be the best way to be.
I love this book because I like to play soccer to!
It really made me feel strong emotions about friendship. It also taught me about priorities related to friendship.