#4 Wade Barrett
Another surprising entry on this list for those who are unaware of Wade Barret’s background: he was a former bare-knuckle boxer. Hailing from the mean streets of England, Barrett made a name for himself as one of the toughest men around, boxing for years without any gloves or other protective gear.
While it may be tempting to dismiss the former Nexus leader as a threat in the octagon due to his admittedly minimal experience with amateur wrestling, to do so would be to invite a knockout usually administered by the likes of Anthony “Rumble” Johnson.
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In a sport where so many fighters have made a name for themselves as “knockout artists”, Barrett would fit right in. Add to this, the fact that the Englishman is pretty much the same size as Lesnar, it would be bad news indeed to underestimate Mr Barrett.