Sosa made a fast start, but Segura settled down and made his presence felt from the sixth round onwards. Segura was deducted a point for a low blow in round nine handing the advantage to Sosa and may well have cost him the fight. The scores were 115-112, 116-112 and 114-113.
Sosa has now earned the chance to face the WBC flyweight champion Akira Yaegashi.
On the undercard bantamweight Alejandro “Cobrita” Gonzalez Jr scored a first round knockout against Noe Martinez.
Featherweight Adrian Young improved to 18-0-1-(15), after decisioning Sylvester Lopez over 10 rounds. The scores were 95-92 twice and 97-92.