Top Rank on ESPN returns tonight for Week 4 inside "The Bubble" at the MGM Grand Conference Center — Grand Ballroom in Las Vegas. In the 10-round main event, Oklahoma City junior welterweight contender Alex Saucedo will clash with the fighting pride of Toledo, Ohio, Sonny Fredrickson.

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ESPN & ESPN Deportes will televise the Saucedo-Fredrickson card beginning at 8 p.m. ET/5 p.m. PT. The 10-round co-feature will pit junior welterweight contender Josue "The Prodigy" Vargas against Salvador Briceno.