Yes, to win some fans Plus why would you need to win by knockout after 4 rounds when there is 8 more rounds to go?
Vitali needed a KO against Lewis, as it was obvious from the point the first cut happened that the fight wasn't going the distance.
I just don't remember any fight that they were behind on the scorecards after minimum 4 rounds. Either one.
Can't think of any fights except the mention of the dreaded t6 fight. I cant think of any fights when they were down after 2 rds.