India's [ Images ] Sania Mirza [ Images ] remained on course for yet another ITF title when she sailed into the semi-final of the Boca Raton Winter Classic ITF World Ranking Tennis tournament at Florida [ Images ], USA.

The Wimbledon [ Images ] girl's doubles champion beat Ekaterina Afinogenova of Russia [ Images ] 7-5, 6-3 to enter the last four.

The Hyderabad lass, teaming up with Natallia Dziamidzenka of Belarus, has also reached the doubles semi-final.