"The best players in the world intimately know the importance of time . . . as a general rule, you want to play quicker when things are falling your way, not allowing time for any surprises to appear. It's the complete opposite when the opponent is dominating. [The best players make] matches last longer when they are under attack, giving them a few extra ticks on the clock to find an answer to their troubles."
Craig O'Shannessy, Infosys ATP Beyond the Numbers, "Federer's Focus: Time is of the Essence" (Feb. 28, 2016)