Floyd Mayweather Jr. reacts to bruise under left eye that Deji gave him

Floyd Mayweather Jr. had his way with Deji as expected en route to a sixth-round TKO on Sunday.

But even the self-proclaimed "The Best Ever" had to salute the YouTuber for landing a flush punch against him that gave the Hall of Famer a welt under his left eye.

"I'm glad that he landed a good shot," said a smiling Mayweather, with his arm draped around Deji's shoulder, seconds after pointing to the shiner during his post-fight interview in the ring.

"This," referring to the bruise, "is a part of fighting."

Added Mayweather: "This is a part of entertainment. These people want to see entertainment and fun and that's what we both gave them tonight. You're a hell of a fighter, you're a hell of a competitor, and keep up the great work."

Deji took pride in giving Mayweather the "black eye."

The lighthearted moment came after Mayweather gave Deji and his brother KSI respect.

"Deji — you're a tough competitor, I'm proud of you. Keep up the great work," Mayweather said to the YouTuber. "Your brother, KSI, he's a hell of a fighter also. I want him to keep up the great work. Ya'll together, working as a team, working as a force, I'm proud of you guys."