By Jake Donovan

David Sanchez faces countryman Juan Alberto Rosas in the first defense of his interim 115 lb. belt Saturday evening in Hermosillo, Mexico. 

Both fighters made weight for their contest, in which airs live on TV Azteca in Mexico and beIN Sports Español in the United States. Sanchez came in exactly at the 115 lb. limit. Rosas was a shade under at 114.75 lb.

Sanchez (26-2-2, 20KOs) comes in riding a 16-fight win streak, including a vacant title-winning effort in a 12-round decision over Breilor Teran last May. His most notable win of a three-fight campaign in 2014 came one bout prior, scoring a 4th round stoppage of former Top 10 contender Marco Demecillo.

His most recent performance came in a non-title fight, stopping Anuar Salas in five rounds last August. 

Rosas (40-8, 28KOs) has emerged as a divisional spoiler in recent years. His biggest win to date was a Nov. '11 majority decision over Zolani Tete, who went on to win—and still holds—a super flyweight title. 

In more recent times, Rosas also managed an upset over previously unbeaten Alejandro Gonzalez Jr. last April. Gonzalez' father, Alejandro Sr. enjoyed a title reign during his run as a top featherweight in the latter half of the 1990s. 

The winner of Saturday's bout will be in line to face 115 lb. titlist Kohei Kono. 

PHOTOS & WEIGHTS

David Sánchez 115 lbs       vs. Juan Alberto Rosas 114.7

Adrián Young 130  lbs       vs.  Josué Veraza 128 lbs

Gilberto Parra 107.8 lbs     vs. Maximino Flores 107.8 lbs

Luis Castro 112 lbs             vs. Antonio Rodríguez 112 lbs

Jonathan Sánchez 116 lbs  vs. Jesús Limones 115 lbs

Víctor Méndez 122 lbs       vs. Román Meléndez 123 lbs

Anel Chávez 112 lbs           vs Guadalupe  Bojórquez 112 lbs

Juan Montiel 148 lbs           vs Victor Esquer 150 lbs

Jake Donovan is the Managing Editor of BoxingScene.com, as well as a member of Transnational Boxing Ratings Board and the Boxing Writers Association of America. Twitter: @JakeNDaBox