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Three more fights have been added to the World Series Of Fighting 13 card as Keon Caldwell faces Ozzy Dugulubgov, Isaiah Chapman faces Timur Valiev and Tom Marcellino faces Frankie Perez. Caldwell is an alumni of the UFC Ultimate Fighter and he is currently winless in the WSOF, having lost to Nick Newell at the WSOF IV. Dugulubgov has won two of three fights under the WSOF banner, most notably defeating Andrew Osborne at the WSOF V.
Chapman will be making his WSOF debut in this fight after spending his entire career thus far in the North American Allied Fight Series promotion. Valiev is currently undefeated in WSOF competition, having defeated Adam Acquaviva at the WSOF X.
Valiev is currently winless in WSOF competition, having dropped a fight to Brenson Hansen at the WSOF II. Perez will be making his WSOF debut in this fight, after spending his entire career until this point in the Ring Of Combat promotion. World Series Of Fighting 13 takes place on September 13th from the Sands Casino Resort in Bethlehem, Pennsylvania with Marlon Moraes and Josh Hill headlining.
