Serena Williams cruised into the Internazionali d'Italia semi-finals with a comfortable 6-2 6-0 victory over Svetlana Kuznetsova on Friday.
Williams overcame an illness - attributed to a bizarre incident in which her curiosity led her to try dog food - to battle past Christina McHale in round three, and the top seed was dominant against her Russian opponent.
Kuznetsova took a total of three points off Williams as the American - watched on by her pet dog - raced into a 3-0 lead, but the world number 19 showed signs of fight as she won back-to-back service games to love.
However, Williams wrapped up the set on Kuznetsova's serve, converting her first break point, and carried that momentum into the start of the second.
After opening up a 2-0 lead, Williams survived three break points to remain blemish free in the second set, and Kuznetsova would come to rue that missed opportunity - broken in the next as the 21-time grand slam champion closed in on the finish line.
Williams, chasing her fourth Italian title, comfortably moved into a 5-0 lead and a dejected Kuznetsova was unable to salvage her final service game, crumbling to seal her opponent's progression.
Williams will now meet Irina-Camelia Begu in the last four.