confirmed, masha will finish 1st in white group irregardless of the match outcomes tomorrow. so no rena SF
But she still has a monkey on her back - she is 0-22 against Top 5 players in her career, something she'll have to overcome as she takes on World No.4 Agnieszka Radwanska on Friday - the winner of that match will qualify for the semifinals as No.2 in the White Group
, behind Maria Sharapova.
That match is second on, and the third match on will also determine a semifinalist - Victoria Azarenka and Li Na will square off, the winner of that match qualifying for the semifinals as No.2 in the Red Group, behind Serena Williams (Azarenka and Li both played on Thursday as well - read about Azarenka's loss to Williams here and Li's win over Kerber here).
The first match of the day pits Sharapova against Stosur and will not affect the standings in the White Group or who qualifies for the semifinals.