Serena Williams opens clay season with routine win in Rome

Williams fell behind 3-1 in the first set but then began to take control with her baseline power on a windy day at the Foro Italico.

When Williams ran down a passing attempt from Peterson and replied with a cross-court winner to break for 5-2 in the second set, she let out a scream and bent over as she pumped both of her fists.

In the final game, Williams served two aces and saved two break points before closing out the first-round match.