Share 'From Arithmetic to Calculus'

Yeah, this is a weird title for a tennis blog, but it's appropriate. I've played the game of tennis for near nineteen years now, but for all but eighteen months ago, I played the exact same way. That way is normally called "pushing". Pushers call it "less mistakes", or some bullshit like that. That started because I taught myself the game hitting against the garage door with a hand-me-down Conno…