Andy Ruiz Jr. has only been the heavyweight champ for a few days, after shocking the world with his less than stellar physique. Now  Ruiz is punching against TV heavyweights.

ESPN’s Stephen A. Smith had some words on Monday, Ruiz responded.    

Smith’s comments came a day after Ruiz shocked the world by knocking out Anthony Joshua on Saturday.

Smith continued his rant by saying he was upset boxing fans didn’t get to see Joshua and Deontay Wilder. Smith said he was “disgusted” Wilder didn’t deliver the knockout.

Ruiz responded to Smith by pointing out that he’s been around the boxing scene for over 10 years.

The 29-year-old Ruiz also called out Smith’s lack of boxing knowledge.

Smith has responded to that by telling Ruiz he didn’t insult his career, just his weight. 

What a nice guy.

Once again Stephen A. Smith has done his job.

The Job of a professional Troll is never an easy one.

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