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Alvarado (34-2, 30 KO) last fought in Japan in 2013, losing a decision to Kazuto Ioka in a bid for the WBA light flyweight title. He lost his subsequent WBA flyweight title bout to Juan Carlos Reveco, but is 16-0 (15 KO) since then, most recently stopping Randy Petalcorin for the vacant light flyweight belt formerly held by Hekkie Budler.
Konishi (17-1, 7 KO), five years Alvarado’s junior, campaigned mostly at minimumweight, picking up a win over recent title challenger Masataka Taniguchi, before unsuccessfully challenging Carlos Canizales for the vacant WBA light flyweight belt last March. He’s since picked up a pair of knockouts over marginal competition
Alvarado will have a three-inch reach advantage.
The lowest weight classes don’t get enough credit, but Alvarado is always good for a scrap. Here’s hoping they get some eyes on them.