Bantamweight prospect T.J. Dillashaw (7-1) became the third UFC 158 victor to join the card of UFC on FOX 7 as an injury fill-in, replacing the sidelined Francisco Rivera (9-2) against Hugo Viana (7-0) on the night's preliminary card.
UFC on FOX 7 takes place April 20 at HP Pavilion in San Jose, CA. A lightweight title unification bout pitting UFC champion Ben Henderson against Strikeforce champion Gilbert Melendez headlines the event.
Dillashaw, a finalist on TUF 14, has rolled to three straight victories since losing to John Dodson in the show's finale. The 27-year-old Team Alpha Male product edged Walel Watson via decision, before submitting Vaughan Lee and most recently knocking out Issei Tamura.
Meanwhile, the undefeated Viana is a perfect 2-0 since losing to Rony Bezerra in an exhibition match for the semi-finals of The Ultimate Fighter: Brazil. Viana edged TUF: Brazil castmate John Teixeira then knocked out Reuben Duran last December in his bantamweight debut.