Denzels a boxing fan. He was there for the boxing and not for the camera opp. like the rest...

He's been at:
ODLH vs. SSM I & II
Tyson vs. Lennox
Lennox vs. Vitali

That I can think of off the top of my head.

You wanna hear a good one "Mr. T" was ringiside at several Ricardo 'Finito' Lopez fights.