Since last year, the Boston native has gone 4-0 and will now face his toughest challenge in perennial top contender Demian Maia. The Brazilian jiu-jitsu ace has almost 40 professional mixed martial arts bouts to his name, and before his February win over Lyman Good, had lost three in a row (albeit to a murderer's row of opponents: Tyron Woodley, Colby Covington, Kamaru Usman).
Martin, 29, understands what's at stake for his career with such a significant matchup. Not only because Maia is still a big name in the welterweight division, but also because many of the top fighters at 170 implement a grapple-heavy strategy.
"This is the…