Logan Paul suffered defeat in his eagerly-awaited YouTube rematch against rival KSI - but felt a sense of injustice after being docked two points in the fourth round.
The American floored his British opponent but was adjudged to have landed a punch while he was down - leading to the controversial deduction.
If Paul had not been docked the two points, the judges scorecards show he would have won the bout by split decision rather than losing it in the same manner.
The crucial scorecard was that of Lou Moret who, after the deduction, scored the six-round fight 56-55 to KSI.
That card would have been reversed if Paul had not been docked two points, which would have seen the American have his hand lifted as the victor.
Judge Patrick Russell scored the fight 57-54 to KSI - so the Brit would have still won the on that card without the deduction.
Even having had two points docked, Paul came out on top on the scorecard of Zachary Young, winning the fight 56-55 in the eyes of the third judge.
After the fight, Paul was livid at the deduction and called out KSI for a rematch - but his foe said the rivalry, in his opinion, was now finished.
"I thought it was a legitimate knockdown," Paul said. "I didn't get a warning.
"I got two points taken away from me and that's the reason I lost tonight. I would love to contest the commission because I think I should have got a warning. I don't think it was fair at all."
