Nikhat Zareen, Manisha Moun and Parveen Hooda will fight hard to change the colour of their medals when they enter the ring for the semifinals of the IBA Women's World Boxing Championships in Istanbul on Wednesday. The three boxers are assured of at least a bronze after they pulled out thrilling victories in their respective quarterfinal bouts on Monday. "The performance has been satisfactory. The boxers have performed very well although they weren't able to convert it (into wins). But all of them have paid well. They have given their best in the ring," women's head coach Bhaskar Bhatt told PTI from Istanbul.