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Tachi Palace Fights 12's main event will feature a pair of Californians, as Fresno's Casey Olson (13-3) drops to 135-pounds to face Visalia's Cody Gibson (5-2).

Olson may be best known for a pair of Strikeforce wins over Chris Culley and Bobby Sanchez, but he's also a staple at the Tachi Palace Hotel and Casino having fought there four times under the WEC banner (during the promotion's pre-Zuffa era), as well as six times for the now-defunct Palace Fighting Championship promotion in addition to his May 2010 win at Tachi Palace Fights 4.

Meanwhile, Gibson looks to rebound from a December loss to Ulysses Gomez in a bid for Tachi Palace Fights' then-vacant bantamweight title. The Elite MMA product fought well on the opening rounds and looked on his way to an upset before succumbing to a third-round submission.

"TPF 12: Second Coming" takes place March 9 at Tachi Palace Hotel and Casino in Lemoore, Calif.