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After Rosi Sexton gained her first class degree in Maths from Cambridge University and PhD in Theoretical Computer Science, she embarked on a ground breaking career in Mixed Martial Arts. Recently retired she tells us about why she took up the sport, the barriers she broke as the first Briton to fight in the UFC, and the importance of teaching her son the difference between violence and controlled aggression in the ring.

Photo (R-L) Rosi Sexton punches Jessica Andrade in their women's UFC bantamweight bout CREDIT: Josh Hedges/Zuffa LLC/Zuffa LLC via Getty Images)