Two world title rematches and four blood-and-guts warriors are coming to Tucson Arena Saturday evening for "Twice as Nice," one of the year's most highly anticipated cards (ESPN and ESPN Deportes, 10 p.m ET/7 p.m. PT). (photos by Mikey Williams).

In the main event, WBC super featherweight world champion Miguel “El Alacran” Berchelt (35-1, 31 KOs) and Francisco “El Bandido” Vargas (25-1-2, 18 KOs) will look to repeat the thrills of their January 2017 match, won by Berchelt via 11th-round knockout.

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And, in the co-feature, Emanuel Navarrete (26-1, 22 KOs) will defend his WBO junior featherweight world title against Isaac Dogboe (20-1, 14 KOs), the man he defeated by unanimous decision to win the title back on Dec. 8.

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