Adrien Broner says he’s laser focused this time but antics at news conference prove otherwise

LAS VEGAS — Adrien Broner is more focused than ever before, Mayweather Promotions CEO Leonard Ellerbe claims.Broner’s trainer, respected coach Kevin Cunningham, guarantees Broner will perform spectacularly Saturday and score the upset over Manny Pacquiao. Broner himself swears he’s more focused than ever; that this time, it’s different.We’ve heard this story before, not just with Broner, but with other talented fighters before him who underachieved. Former two-divis