Pretty Tough by Liz Tigelaar
Sisters Charlie and Krista used to be best friends. But ever since Krista turned her back on Charlie in a crisis moment, things have changed. Now Krista is the pretty, popular, smart one and Charlie is more of a loner who'd rather go surfing than to the latest party. The two sisters pretty much ignore each other until Charlie tries out for Krista's soccer team. I actually didn't know that much about soccer before I read this book so if you're not a soccer fan, no worries. I got sucked into Charlie's story (the book is really more about her) because she wasn't afraid to go her own way. Of the two sisters, Charlie seemed more at peace with herself than Krista does. But in the end, both sisters teach the other about team-playing and about being friends. All in all, this was a great book and I've actually joined a soccer team since reading it!