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JOHN GREILICK/Associated Press

In case you didn't know, trash-talking in sports, well, it's an art form.

There are guys who do it really well, guys who just do it and then there are guys who would rather just let their play do the talking.

With a key component of sports being the mental aspect, the greatest talkers are the ones who know exactly what to say and how to say it, striking both fear in their opponent and frustration.

With Seattle Seahawks cornerback Richard Sherman getting a lot of attention lately thanks to running his mouth, I'm taking a look back at some of the athletes who Sherman probably looked up to—assuming he wants to be one of the best trash-talkers ever.