LAS VEGAS, NV - MAY 24: (R-L) Francisco Trinaldo knees Michael Chiesa in their lightweight bout during the UFC 173 event at the MGM Grand Garden Arena on May 24, 2014 in Las Vegas, Nevada. (Photo by Josh Hedges/Zuffa LLC/Zuffa LLC via Getty Images)
LAS VEGAS, NV - MAY 24: (R-L) Francisco Trinaldo knees Michael Chiesa in their lightweight bout during the UFC 173 event at the MGM Grand Garden Arena on May 24, 2014 in Las Vegas, Nevada. (Photo by Josh Hedges/Zuffa LLC/Zuffa LLC via Getty Images)