The Top Rank on ESPN 2023 schedule kicks off with a heavyweight doubleheader Saturday at Turning Stone Resort Casino. (photos by Mikey Williams)

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In the 10-round main event, thunderous puncher Efe Ajagba (16-1, 13 KOs) looks upend the unbeaten run of St. Louis native Stephan "Big Shot" Shaw (18-0, 13 KOs).

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The 10-round co-feature sees 2016 Italian Olympian Guido "The Gladiator" Vianello (10-0-1, 9 KOs) stepping up against noted spoiler Jonnie Rice (15-6-1, 10 KOs). Ajagba-Shaw and Vianello-Rice will be broadcast live on ESPN, ESPN Deportes and ESPN+ at 10 p.m ET/7 p.m. PT. 

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The undercard — streaming live and exclusively on ESPN+ at 5:30 p.m. ET/2:3-0 p.m. PT — features a 50/50 junior lightweight bout between contenders Abraham "El Super" Nova (21-1, 15 KOs) and Adam "BluNose" Lopez (16-3, 6 KOs), upstate New York-born junior welterweight prospect Bryce Mills (10-1, 4 KOs), and Brooklyn-born featherweight sensation Bruce "Shu Shu" Carrington (5-0, 3 KOs).

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