Beijing - World No 2 Maria Sharapova made light work of her second-round match at the China Open in Beijing on Wednesday, progressing to the last 16 with ease.
The Russian number two seed defeated Romania's Sorana Cirstea, ranked 29th in the WTA standings, in straight sets, 6-2, 6-2.
The 25-year-old will face Slovenia's Polona Hercog, 90th in the rankings, in the third round.
Elsewhere on Wednesday there was a shock in the last 16 when Romina Oprandi of Switzerland beat former world No 1 Ana Ivanovic in straight sets to progress to the quarter-finals.
Oprandi, who received a late entry after Serena Williams withdrew just two days before the start of the tournament, defeated the 11th seed from Serbia 6-4, 6-3.
"I really struggled to find my rhythm out there today, especially on the forehand," Ivanovic said.
"The ball was coming without much pace and I wasn't really efficient moving forward and taking advantage of that," she added. "It was the unforced errors that made a big difference."
Ivanovic's compatriot Jelena Jankovic was also knocked out, losing to Spain's Carla Suarez Navarro 7-5, 6-4.