Top Prospect Guido Vianello Scores a 1st Round Knockout of Donald Haynesworth | FIGHT HIGHLIGHTS

Watch as top heavyweight prospect #GuidoVianello wins in the first round in his fight on the undercard of #StevensonCaraballo. Try ESPN For Free: Subscribe to our YouTube channel to get notified about the latest highlights, free full fights, and fight week content as it’s posted. Follow Top Rank on Twitter: Follow Top Rank on Instagram: Like Top Rank on Facebook: