On Sunday night, Anthony Smith knocked out Mauricio Rua at UFC Hamburg.

The light-heavyweight fighters clashed in the main event of the evening - and brought the Barclaycard Arena to life.

A STRONG FINISH

Their bout followed nine straight decisions - but Smith was able to finish the biggest fight of the night within one round. 

He caught Rua with a brutal front kick - landing it right on the jaw, before finishing with a flurry of punches and elbows. 

Following the win, "Lionheart" took the mic to put the rest of the UFC's LHW division on notice.

CALLING OUT THE MAULER

After handing out a mauling of his own, Smith laid down a challenge to The Mauler himself - Alexander Gustafsson. 

The Swede was set to compete at UFC 227 in August - but had to pull out at short notice. 

However, he may not have to wait very long at all for his next fight. 

"I hear Gustafsson needs an opponent," Smith said inside the cage.

"Gustafsson, I’ll see you in L.A.!"

Although much of his post-fight interview was concentrated on his next bout, Smith has since turned his attention to wider issues in the light-heavyweight division.

SORTING OUT THE MESS 

According to the American, the top of UFC's LHW division is a "disaster" - and that's all down to Daniel Cormier. 

Smith claims that DC, who now holds the light-heavyweight and heavyweight titles, does know what his next move is - but is refusing to tell anyone. 

Because of that, in Lionheart's eyes, he's holding up the entire division. 

"The top of the division is a disaster right now. ‘Shogun’ was supposed to be next and now he’s not," Smith explained, via MMAFighting.

"No one knows what’s going on with Cormier. I think that that’s the first step, we need to figure out if Cormier’s staying or going."

HOLDING UP THE DIVISION

"I’ve said this before, I think that Daniel is an honorable man and it wouldn’t be a very honorable thing to do to hold up the division. He knows right now," the 29-year-old continued.

"You guys could ask him 100 times and he won’t tell you, but he knows if he’s coming back down or not, and I think that he needs to make that public so we can figure out what we’re all doing."

Clearly, Smith is frustrated with the shape of his division right now - and that's not surprising. 

He's undefeated in his last six fights - and last saw his opponents hand raised way back in 2016. Right now, he's on a hot streak and wants to know who stands in the way of the belt.