KEY BISCAYNE, Fla. —
As they battled from the baseline, Sharapova built a lead by keeping Williams on the defensive, and kissed the line with a winner on consecutive points to break for a 3-2 advantage in the second set.
“I just was like, ‘Serena, are you really going to get to the final and not play up to your potential?”’ Williams said. “I don’t think I was as energized as I could be.”
Then came the turnaround. Williams ratcheted up the power, began feasting on Sharapova’s tentative second serve and broke back at love, then took advantage of two double-faults by Sharapova to break again.