New Delhi, April 4 -- British boxers Caroline and Daniel Dubois have some catching up to do on Gabriela and Sebastian Fundora.

The Fundora siblings hold a total of five world titles - Gabriela with four of them as the undisputed flyweight champion. The Dubois' have one - Caroline's WBC lightweight belt.

Caroline Dubois can double her tally when she faces WBO lightweight champion Terri Harper on Sunday in London. Next month, Daniel Dubois will try to become a two-time world champion when he takes on WBO heavyweight title holder Fabio Wardley in Manchester.

Ahead of a busy weekend of women's boxing, here's a look at some successful sister-brother boxing pairs.

Tight-knit Fundora southpaws

Besides being world champions, the Fundora sibl...