The American boxer took to his Facebook page to congratulate Usyk.
He said,
"I wish Usyk continued success in your quest for greatness. You are a class act champ.
Yesterday I had to mentally take myself into a dark place to compete for the championship belts! I had two fights, one with Usyk and one with my emotions and both got the better of me.
I’ll be the first to admit, I let my self down. I acted out of pure passion and emotion and when not controlled it ain’t great.
I love this sport so so much and I’ll be better from this point on.
Respect".