Roger Federer has certainly been playing well so far in 2013, especially given the fact that he has only been involved in two tournaments.
His Australian Open run was perhaps one of the toughest of his entire career. The Swiss man was stretched to the five-set limit in back-to-back matches for the first time, ultimately succumbing in the second encounter to Andy Murray.
But reaching the semifinals (and nearly the final) of a Major by grinding and fighting against his high-level opponents proves that he showed up even without playing tune-up tournaments.
So far he has been cruising in his title defense at the ABN AMRO World Tennis Tournament, winning his opening matches in straight sets.
Let's see the five keys for him to avoid a disappointing remainder of the season.