Stan Wawrinka stole the spotlight, but that's not all we learned at the Aussie Open.
Whether it was his back or his opponent, world No. 1 Rafael Nadal was fighting a losing battle.
Leave it to Rafael Nadal to ruin Roger Federer's feel-good story. But that's exactly what he did.
Sometimes sequels aren't so bad. Especially for Stanislas Wawrinka, who turned around his marathon misfortunes.