A lightweight bout has been added to UFC 188 in Mexico City on June 13 as Frank Trevino will meet Johnny Case in a bout that will take place on the preliminary card. 
The fight booking was announced by the UFC on Friday.
UFC 188 will come from the Mexico City Arena on June 13 and will be headlined by a heavyweight title unification bout as Cain Velasquez meets Fabricio Werdum.
Trevino (12-0) was signed by the UFC last year and won his promotional debut by unanimous decision against Renee Forte at UFC 171. It was his third straight win by decision and he has eight career wins by stoppage. Case (20-4) is currently on a ten fight winning streak and two of those wins have come in the UFC. His most recent win came in January as he defeated Frankie Perez by TKO.
The current UFC 188: Velasquez vs. Werdum fight card is below.
Cain Velasquez (13-1) vs. Fabricio Werdum (19-5-1)
Gilbert Melendez (22-4) vs. Eddie Alvarez (25-4)
Tecia Torres (5-0) vs. Angela Hill (2-0)
Augusto Montano (15-1) vs. Cathal Pendred (16-2-1)
Yair Rodriguez (4-1) vs. Charles Rosa (10-1)
Kelvin Gastelum (10-1) vs. Nate Marquardt (33-14-2)
Alejandro Perez (15-5) vs. Patrick Williams (7-4)
Frank Trevino (12-0) vs. Johnny Case (20-4)