Six-time champion M C Mary Kom (51kg) on Tuesday advanced to the quarterfinals of the IABA World Women's Boxing Championships after a hard-fought victory in the last-16 stage at Ulan-Ude, Russia. Also, Lovlina Borgohain (69kg) and debutant Jamuna Boro (54kg) marched into the quarterfinals comprehensive victories in the pre-quarters here. (More Sports News)