There are times when the cynical side of me starts to wonder how bad an American boxer would have to be ever to lose a fight.

Or, more accurately, how bad his management would have to be. I've lost count over the years of the number of fighters who have appeared on the scene with unblemished records; people billed as the opponent who was going to be the real deal to test for an up and coming Brit.

They are lined up boasting 20 or more contests with nearly as many wins, and most of them by a knockout. Eddie Hearn tells you how dangerous they will be.

And then normally they cower in the corner of the ring or run away for a round or two, before being unceremoniously despatched by our hero.

Clearly that's how Betfair's markets view Charles Martin , the man who will be in front of Anthony Joshua in the O2 Arena in April when our former Olympic golden boy bids to become the IBF Heavyweight Champion of the World.

Joshua is as short as 1. Another big Wembley occasion beckons, with Hearn eager to count his pay-per-view cash.

Well sorry, but don't be fooled. At that price you might be better off laying Joshua, because while Martin might fit the identikit of the manufactured champion, with 23 wins and 21 knockouts in 24 fights, there is more to the year-old from Saint Louis in Missouri than that.

He's 6ft 5in, a southpaw, with the ability to throw a fearsome left fist. He's also agile, moves well, and is blessed with outstanding fitness and stamina.

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Instead, it feels like the winning selection will likely come from the opposite end of the fight outcome prop market.

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By Tom Craze Apr 8, , pm EDT. Joshua enlisted several southpaw fighters from overseas during his training camp and feels he is prepared for the threat posed by Martin.

The manner of his victory over Glazkov and his career to date means that despite being heavyweight champion of the world, Martin arrives in the English capital as a relative unknown but could leave the O2 Arena with his reputation supremely enhanced if he can upset the talented British heavyweight.

The key for Martin will be to avoid trading punches with Joshua, whose power and reach — not to mention his unblemished knockout record - means he has the capacity to send the Missouri-born fighter to the canvass in the blink of an eye.

Equally, Joshua will not want to engage in a tactical encounter which could expose his lack of know-how at this level.

Martin: "My strength and conditioning coach, he's a really awesome guy, I take my hat off to him. You definitely guaranteed a win in this fight, because that's something I ain't ever been on, a different level, a whole new level.

I was just ready to take on another level to my boxing. We don't hold too many data for such a fight. ADD COMMENT VIEW COMMENTS Top Headlines Plant: I Wasn't Overly Impressed With Canelo; Callum Smith Didn't Go Out On His Shield Gervonta Davis, Ryan Garcia Continue To Hype Up Potential Blockbuster Showdown Ring City USA Series To Return Feb.

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