Anthony Vieira

Bio

Anthony Vieira is an unbeaten American southpaw who announced himself on a big stage at Fenway Park. 'Vicious' is 11-0-1 with 6 knockouts, a pressure-fighting super welterweight who walks opponents down and makes every second of every round uncomfortable.

Vieira's game is all about tempo and intent. He is not content to box at range — he wants to be on top of you, working behind a busy jab and turning fights into the kind of high-volume scraps where his engine and his will take over. For an unbeaten fighter still early in his career, his maturity under pressure is striking.

He took the biggest opportunity of his life on June 6, 2026, challenging WBC USA Silver champion Jahyae Brown in the main event of Fight Night at Fenway 2. Vieira controlled the early rounds, made Brown fight at his pace, and one judge scored it a wide 80-72 shutout in his favour. The official verdict was a split draw — but the momentum was all his.

At 25 and still unbeaten, Anthony Vieira looks like a name to follow. A rematch with Brown would be a natural next step, and on the evidence of Fenway, plenty of good judges will fancy him to get it right second time around.