Grand Slam Track is what has been needed in athletics – Michael Johnson

Michael Johnson believes his Grand Slam Track series is filling a “void” in athletics and is optimistic it will continue to attract the biggest names.

The former American sprinting great hopes his new league, which will launch next year, will modernise the sport and reach a new audience.

With record prize money available for athletes competing over distances from 100 metres to 5,000m, Grand Slam Track will feature contracted stars racing at four events between April and September.