MLK incident 

It's true that Greenberg said what he said. It's true that a Chicago Sun Times blog reported what he said. Those two facts, in and of themselves, do not make the MLK incident "relevant" to his ESPN career. The fact that there was no meaningful followup coverage in reliable sources should establish that. Alleging that Greenberg's comment was a Freudian slip simply because he has mentioned making such slips requires a citation from a reputable source establishing that he said he makes Freudian slips. I'll assume good faith on the part of the IP editor who has been reinserting the MLK incident, but I strongly question the relevance of including what appears to be a simple spoonerism, even if it has racial connotations.