Erin Burnett OutFront -

Goodell vs. Rice: Who's telling the truth?

NFL Commissioner Roger Goodell is digging in, insisting he didn't realize the scope and severity of Ray Rice's attack on his now-wife in a Atlantic City elevator.

Ray Rice case: Did NFL execs know the truth earlier?

In a letter to the player's association obtained by ESPN, Goodell writes that Rice's description of the attack months ago was "starkly different from what he saw on the video that surfaced Monday.

It's an assertion that contradicts a report that Rice confessed to Goodell he had punched his fiancee.

CNN's Miguel Marquez is OutFront with more.