Joshua, who is signed to Matchroom Boxing, stopped Wladimir Klitschko in the 11th round of their Wembley clash to seal his status as the biggest name in boxing on Saturday night.
The 27-year-old now holds the IBF, WBA and IBO belts, and Hearn believes his stunning performances and likeable persona appeal beyond the boundary of normal boxing fans.
“All sports need flag-bearers,” said Hearn. “The Joshua effect is very similar to the Tiger Woods effect in golf, where people who are not so interested suddenly become interested, where young people become aspirational to follow in someone’s footsteps.
