Richie Incognito sent Jonathan Martin text messages and voicemails of a threatening and racially charged nature, according to sources.

Those messages will be shared with the NFLPA as part of the investigation.

Incognito was suspended indefinitely by the Miami Dolphins on Sunday for "conduct detrimental to the team."

Jay Glazer reported Martin was receiving treatment. Glazer stated on FOX NFL Sunday "there's a lot more to the story with Jonathan Martin personally than meets the eye."

Multiple sources confirmed to ESPN that the following is a transcript of a voice message Incognito left for Martin in April 2013, a year after Martin was drafted:

"Hey, wassup, you half n----- piece of s---. I saw you on Twitter, you been training 10 weeks. [I want to] s--- in your f------ mouth. [I'm going to] slap your f------ mouth. [I'm going to] slap your real mother across the face [laughter]. F--- you, you're still a rookie. I'll kill you."

Sources say these are not terms Incognito used in isolated incidents. 

Martin also received texts referring to the female anatomy and sexual orientation.