It's a bad adaptation - no debate. But it's still a decent anime worth looking into. I'd say if it got you at least somewhat intrigued, go ahead and read the manga as well. Top 3 sports manga for me after Kenrantaru Grande Scene and Chihayafuru
"Hear me out, let's make a series that would pander to conservative men with gay girls. -Great, let's do it! - ... but let's make them sisters" ( ◣∀◢)ψ