Unbeaten middleweight Michael Oliveira headlines Nov. 20 in Brazil

Unbeaten middleweight Michael Oliveira headlines Nov. 20 in Brazil MIAMI  – Unbeaten, UNBC Middleweight Champion Michael “Chairman of the Board” Oliveira returns to his roots November 20, headlining “A Gala Night of Boxing” pro-am event, at Espaco das Americas in Sao Paulo, Brazil. “A Gala Night of Boxing,” presented by Rumble Star Promotions, in association…