Guido “The Gladiator” Vianello represented Italy at Rio 2016 and turned professional in 2018. The Roman heavyweight built an early run of stoppages before a draw with Kingsley Ibeh and a seventh-round defeat to Jonnie Rice tested his progress.
He returned with a win over Moses Johnson, then lost a close ten-round split decision to Efe Ajagba in April 2024.
Vianello earned his strongest professional victory in Quebec City in August 2024, stopping Arslanbek Makhmudov in the eighth round. He maintained his boxing against a dangerous puncher and secured a decisive finish.
Richard Torrez Jr. outpointed him in April 2025. Vianello then stopped Alexis Barrière in round five that October.
An eight-round draw with Moses Jolly at The O2 in August 2026 left him at 14–3–2 (12 KOs). No next fight has been confirmed.
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