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The legendary sprinter revolutionised athletics with his unique running style and record-breaking performances.

Michael Johnson is a four-time Olympic gold medallist who earned millions of dollars through prize money and sponsorships.

Now he's back with a plan to transform athletics with the Grand Slam Track league — a new competition featuring a $12.6 million prize fund.

He's hoping it will elevate financial opportunities for today's athletes and ignite inspiration for future generations.

Produced and presented by Sam Fenwick.

(Image: Michael Johnson carries the American Flag after winning gold in the Men's 200m during the 1996 Atlanta Olympic Games. Credit: Mike Hewitt /Allsport/Getty Images)