Benn fought on the undercard of Sibson v Tate at Stafford. He was very well known, had a big following there. Sibson was always well supported. There was a bit of trouble in fact. Seem to recall a smoke bomb going off.
Calzaghe was on Tyson undercards but wasn’t considered ‘big’ I guess til the Lacy fight. Benn was supposed to be on the Leonard-Duran III card. He attended with Mike Tyson instead.
Weird reading this back and then seeing how Fury-Wilder III ended shortly after; https://www.boxingforum24.com/threads/eubank-sr-bigs-up-rjj-tyson-hearns.673910/