Sania Mirza [ Images ] and her Chinese Taipei partner Chia-Jung Chuang [ Images ] reached the doubles quarter-finals of the $ 220,000 MPS Group Championships in Florida [ Images ], but not before some late scares.

The Indo-Taipei pair had to fight it out in a marathon three-setter to down Melinda Czink of Hungary and Lilia Osterloh of America 6-0, 3-6, 10-5 in the first round.

However, Sania-Chuang duo's route to the last four won't be a cakewalk as fourth seeded pair of Bethanie Mattek-Sands of America and Nadia Petrova [ Images ] of Russia [ Images ] awaits them in the next round.

Sania's campaign in the singles already came to a premature end with a straight sets defeat at the hands of seventh seed Alona Bondarenko in he opening round.