A lightweight bout between “The Ultimate Fighter 15” champion Michael Chiesa (10-1 MMA, 3-1 UFC) and “TUF: Brazil” vet Francisco Trinaldo (14-3 MMA, 4-2 UFC) is the latest addition to the UFC 173 lineup.

UFC officials today announced the bout.

UFC 173 takes place May 24 at MGM Grand Garden Arena in Las Vegas. The main card airs on pay-per-view following prelims on FOX Sports 1 and UFC Fight Pass.

Chiesa vs. Trinaldo will likely be part of the prelims.

Chiesa recently rebounded from his first career loss, which came via submission to respected veteran Jorge Masvidal, with an impressive second-round choke-out of Colton Smith at UFC Fight Night 31 in October. Chiesa, a 26-year-old Team Alpha Male fighter, picked up his second career “Submission of the Night” bonus with the victory, which was his eighth submission win in 10 career victories.

He now faces 35-year-old Brazilian Trinaldo, who recently earned a split-decision victory over Jesse Ronson at UFC Fight Night 36 for his third UFC win in his past four fights. Prior to a September loss to Piotr Hallmann, “Massaranduba” posted a pair of submission victories over C.J. Keith and Mike Rio.

The latest UFC 173 card includes:

Champ Chris Weidman vs. Lyoto Machida – for middleweight title

James Krause vs. Jamie Varner

T.J. Dillashaw vs. Takeya Mizugaki

Michael Chiesa meets Francisco Trinaldo

Chris Holdsworth vs. Kyung Ho Kang

Doo Ho Choi vs. Sam Sicilia

For the latest on UFC 173, stay tuned to the UFC Rumors section of the site.