Moscow - Former US Open champion Samantha Stosur extended her winning streak to seven matches by beating Alize Cornet 6-4, 6-1 in the second round of the Kremlin Cup on Thursday.
The seventh-seeded Australian, who won her second title of the season last Sunday in Osaka, won five consecutive games to win the first set and go 2-0 up in the second.
Stosur, a runner-up here last season, will play either fourth-seeded Ana Ivanovic or Klara Zakopalova in Friday's quarter-finals.