Deontay Wilder successfully retained his WBC title last night with an emphatic stoppage of Luis Ortiz, but it wasn't a perfect night for the Wilder family as younger brother Marsellos was knocked out in his own bout.Despite picking up the win in his rematch with Ortiz, it was quite a rough night for Wilder as he was outboxed and outsmarted for six of the seven rounds - proof of that being the judges' scorecards, who all had the champion behind going into the seventh.However, what we've all come to know about the Bronze Bomber is the fact it only takes one second for him to turn defeat into victory, and that's exactly what he did in the seventh.One punch is all it took to completely wipe out the Cuban, who was sent crashing to the canvas.A brutal and devastating knockout, something we've come to expect from Deontay Wilder.

However, Deontay's knockout wasn't the first knockout of the night involving a Wilder.

His younger brother Marsellos was in action against Dustin Long on the undercard and he was a victim of a brutal knockout. Something unusual about seeing a Wilder knocked out by a vicious punch, as it's usually the other way round.

With just over a minute left in round four of their fight, Marsellos was caught with a sweet left hook by Long, and within seconds, he was on his back and sparked out.

Immediately, the referee waved off the fight, as Marsellos tried his best to get back to his feet.

This brutal defeat leaves his early fight record at five wins and two defeats, meaning he's already suffered more losses than his older brother, who is still undefeated despite having over 40 fights.

Whether Deontay watched his brother fight before his own battle with Ortiz is unknown, but given how it ended, it's probably best that he didn't.