Dinara Safina rolled past another opponent on Wednesday at the French Open , this time beating Vitalia Diatchenko of Russia 6-1, 6-1 in the second round. The top-seeded Safina took a 5-0 lead to open the match, stretching her streak to 17 straight games after winning 6-0, 6-0 in the first round. Diatchenko, an 18-year-old Russian qualifier ranked 153rd, broke Safina once in the second set but failed to convert her only other chance in the first. No. 25 Li Na of China also advanced to the third round, beating Timea Bacsinszky of Switzerland 6-1, 6-4. Later Wednesday, four-time defending champion Rafael Nadal is scheduled to get back on court, as is two-time Grand Slam champion Marat Safin. For the women, No. 3 Venus Williams, No. 8 Ana Ivanovic and unseeded Maria Sharapova are scheduled to play.