CAITLIN Coles is not the biggest 13-year-old you will ever meet - but don't be fooled by her petite and dainty looks.

Because once she has slipped her gum shield into her mouth she is one fast, nimble and deadly martial arts champion.

Caitlin, from Darley Avenue, Athersley South, is a double black belt in karate and kick boxing.

Caitlin, who trains at Holy Trinity, Cudworth and Mapplewell has come away from every competition she has entered this year with at least one medal.