By Jake Donovan

Pedro and Alberto Guevara once again keep it all in the family, as the boxing brothers appear on the same show for the 15th time in their respective careers. The latest venture comes in famliar surroundings, as each enjoy separate showcase bouts Saturday evening in Mazatlan, Mexico. 

Both will face opponents from the Philippines, airing live on Televisa in Mexico.

Headlining the telecast, older brother Pedro faces Jether Oliva in a scheduled 10-round flyweight bout. Both fighters weighed in at 111.3 lbs. 

The elder Guevara (26-2-1, 17KOs) fights for the first time since losing his junior flyweight title to Yu Kimara last November on the road in Sendai, Japan. The result registered as among the biggest upsets of 2015 as well as one of he most dubious decisions of the year, as most observers felt Guevara had done enough to retain his title.

Instead, his title reign ended in the same country where it began with a 7th round knockout of Akira Yaegashi 11 months prior. Guevara managed two successful title defenses, both of which came at home in Mazatlan, each featuring his younger brother on the undercard. 

Oliva (23-4-2, 11KOs) hits the road for the fourth time in his past five fights. It's not a good look for the 27-year old journeyman, as all four career losses have come outside his native Philippines, which has hosted each of his 23 wins. 

In the co-feature, Alberto Guevara (23-2, 9KOs) - who is just 13 months younger than Pedro - faces Edward Mansito in a 10-round super bantamweight bout. 

Guevara - a two-time bantamweight title challenger - tipped the scales at 122.3 lbs. Mansito weighed in at 123.4 lbs. 

The younger Guevara has won five straight, including a hard-fought 10-round split decision over Arturo Santos Reyes last December. The lone two losses of his career have come in pursuit of bantamweight titles, dropping a 12-round decision to Leo Santa Cruz in Dec. '12 and then suffering a 9th round knockout at the dangerous hands of division-best Shinsuke Yamanaka in Nov. '13. 

Mansito (13-3-2, 7KOs) returns to Mexico for his third straight fight after having spent the duration of his young career at home in Philippines. Neither road trip proved successful, dropping a 10-round decision to unbeaten contender Rey Vargas last May and in his most recent bout was stopped in nine rounds by still-dangerous veteran Tomas Rojas. 

Jake Donovan is the managing editor of BoxingScene.com. Twitter: @JakeNDaBox