Finally, the audio clips have come out, and here's what I heard on the radio this morning:
Sherman: blah, blah, blah [talking smack] "Soooo...what are you gonna do? Punch me in the face?"
Williams: (says nothing, punches Sherman in the face)
Sherman: (voice goes up 12 octaves) "Did you see what he did? He punched me in the face!"