Roger Federer's "Imaginary Line Rule" + Running PLAYSDiscuss on Facebook Opens in a new window Wanna discuss this video? Head over to our Facebook Group and post about it there!You might also like: Pushers HATE when you use this return of serve What to do if Villain is hitting high balls to your backhand If you're not familiar, that's Craig O'Shannessy in the video with me. He's leading the analytics revolution in tennis. If you liked his analysis and advice, then I'd like to […] Yikes, Love - 15: Staring ContestPost navigation« Previous PostNext Post »