International footballer Mathieu Flamini started a biotech company when he was still a professional player. Speaking to Sam Fenwick, Flamini reveals what he learnt from top football managers and how that knowledge has helped him perform in the boardroom.

The former Arsenal, AC Milan and Olympique de Marseille player tells us he grew up by the sea and constantly seeing plastic washed up on the shore made him aware of sustainability and climate change. He says as a youngster he had two ambitions in life, to play professional football and become an environmentalist.

In 2008, while still playing top flight football, Flamini co-founded, GFBiochemicals. It produces a chemical called levulinic acid which can be used to replace oil in a range of household products. The industry is worth billions of dollars.

Producer / presenter: Sam Fenwick