World Series of Fighting (WSOF) 4 fight card and rumors for Aug. 10 in Ontario, Calif.

Kyle Terada-US PRESSWIRE

World Series of Fighting (WSOF), the upstart mixed martial arts (MMA) promotion headed by kickboxing legend Ray Sefo, is poised to make its return in Ontario, Calif., via NBC Sports Network on Sat., Aug. 10, 2013. Check out the latest WSOF 4 fight card and rumors below.

Event: World Series of Fighting (WSOF) 4
Date: Sat., Aug. 10, 2013, on NBC Sports Network
Location: Citizens Business Bank Arena in Ontario, California

Main Event:

205 lbs.: Tyrone Spong vs. Angel DeAnda

NBC Sports Main Card:

135 lbs.: Brandon Hempleman vs. Marlon Moraes
265 lbs.: Dave Huckaba vs. Ray Sefo
155 lbs.: Gesias Cavalcante vs. Tyson Griffin
155 lbs.: Keon Caldwell vs. Nick Newell

Online Preliminary Card:

170 lbs.: Gerald Harris vs. Jorge Santiago
155 lbs.: Lewis Gonzalez vs. Antonio McKee
205 lbs.: Lew Polley vs. Hans Stringer
135 lbs.: Joe Murphy vs. John Robles
150 lbs.: Isaac Gutierrez vs. VIctor Valenzuela

For more on the upcoming WSOF 4 event click here.

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