After Serena , Sharapova became the victim of lower back

                                                           

Third-seeded Sharapova struggled with her serve starting from the eighth game, when she was broken at love while trying to serve out the first set.

She was broken in four straight games as Cibulkova raced to a 5-0 lead in the second set, during which time Sharapova only won three points on her own serve.
The four-time major winner rallied to win four straight games before Cibulkova held serve to level the match. After taking an off-court medical time out after the second set for what appeared to be a lower back problem, she had seven double-faults in the third set.