Seattle Seahawks cornerback Richard Sherman has been making the media rounds recently to promote charitable causes important to him, including the "Students With A Goal" campaign featured on the team's website recently.

The media tour turned into a media beatdown Thursday when Sherman, known for his playful trash talk, turned serious in verbally attacking ESPN's Skip Bayless on "First Take."

Sherman was answering a question from co-host Stephen A. Smith when he went after Bayless, who had expressed the opinion that Sherman was not in the same class as Darrelle Revis as a top cornerback. At one point, Sherman used the words ignorant, pompous and egotistical to describe Bayless. He promised to "crush" Bayless "in front of everybody" because he's tired of the "ignorant pollution" Bayless puts forth on the show.

"I believe my numbers speak for themselves," Sherman told Smith. "My tape speaks for itself. My tape is my resume. That is what I leave it up to. You can say whatever you want. Skip can say whatever he wants. But Skip, whenever you refer to me, whenever you speak to me, whenever you address me, address me as 'All-Pro Stanford graduate' because those are some accomplishments you'll never -- you can aspire to, you'll never accomplish."

Sherman was just getting started.

"You have never accomplished anything," he continued, focusing on Bayless. "So, but, um, those things are on my resume, those are what I've done, it's my second year in the NFL going into my third. I mean, you tell me who's wrong."

Bayless: "OK, I'll accept that. I think I've accomplished more in my field than you have in yours, though you're just getting started."

Sherman: "So, I'm at the top of my field. I'm All-Pro. I'm one of the best 22 players in the NFL. You're going to brush it off, but I don't think you're the best 22 anything. In sports, in media, in anything."

Bayless: "That's debatable."

Sherman: "You think more of yourself than you actually can prove."

Bayless: "OK, do you think you are better than Darrelle Revis is right now?"

Sherman: "In my 24 years of life, I'm better at life than you."

Bayless: "OK, all right, that's fair, all right."

Sherman: "Let's get down to brass tacks."

Bayless: "Let's not get personal here. I just want to know --"

Sherman: "It's not personal. It's resume."

Bayless: "Do you think you're better than Darrelle Revis is right now?"

Sherman: "I'm better than you. I have nothing to say about him. That is pretty much done. My numbers speak for themselves."