Middleweight champion  Dricus Du Plessis retained the 185-pound title at UFC 312 last weekend, defeating former titleholder  Sean Strickland in a largely one-sided decision.   When the two first fought at UFC 297, the fight ended in a split decision after a spirited five rounds of fighting. The rematch wasn’t that close and legendary boxing trainer  Teddy Atlas give his analysis on how Du Plessis was able to shut down Strickland in the second fight. “I think there’s a reason why it (the decision) was wider,” Atlas said on  THE FIGHT with Teddy Atlas podcast. “The old-timers, Cus D’Amato, they always told me that winning a title makes you 30% better because 75% is the mind part.  It makes the mind stronger.