UFC interim light-heavyweight champion Jon Jones has been banned for a year after claiming he took a contaminated pill for erectile dysfunction.  

The 29-year-old failed the test ahead of UFC 200 in the summer, which he had been expected to headline against Daniel Cormier.

He had previously failed a cocaine test and been suspended by the UFC after a hit-and-run incident.

The ban has been backdated to the date of the failed test, meaning Jones will be able to return to action next summer.

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Jagroop Shinbt
BBC Sport at Madison Square Garden

Image source, BBC Sport

Located just outside Madison Square Garden was a punchbag machine with a scoreboard showing just how well tonights fighters fared against one another.

Conor McGregor clashed heads with welterweight champ Tyron Woodley backstage earlier this week but it was the American who topped the leaderboards on the punchbag, proving the strength of a welterweight is not to be underestimated.

Michael Bisping gives Yoel Romero the thumbs down, then a couple of other, more offensive gestures, as Romero tells the reigning middleweight champion he's looking forward to facing him. 

Jagroop Shinbt
BBC Sport at Madison Square Garden

What a spectacular turn of events as Romero unleashed a powerful right hand to end the round before it had begun.

"The Soldier of God" then went on to leap out of the octagon and march around the wall before saluting the crowd.

Wow!  Just seconds into the start of the third round, Romero lands a huge jumping knee that stuns Weidman and leaves him heavily bleeding from the forehead.  Romero follows up with a couple of punches to finish off, and that's a huge win for the Cuban.

Image source, Reuters

The round closes with Weidman on the ground as Romero's superior grappling skills take control.

Jagroop Shinbt
BBC Sport at Madison Square Garden

A single fan in the crowd begins chanting "let's go Weidman" and before you know it, the entire arena is chanting it as the "All American" lands some significant hits in the second round.

Image source, Reuters

Romero gets caught in the eye with one of Weidman's fingers, causing Mario Yamasaki to briefly stop the fight and check the Cuban fighter before sending them back into action.  He shows off his grappling skills, getting behind Weidman and keeping him in place.  No more range kicks from Weidman who can't shake Romero loose.

Romero blocks another takedown attempt from Weidman, who is alternating between strikes and grapping, keeping the pace high early into the second round.  Romero responds with an inside leg kick of his own and blocks another takedown attempt.

At 39, Romero is seven years older than Weidman, and has had some questions about his stamina in previous UFC events, but he manages to block Weidman's takedown attempt and tries to lock in a kimura before the klaxon sounds to end the first round.  

Weidman lands three solid kicks to Weidman before chancing his luck with a narrowly missing ax kick.  He tries a takedown, which Romero manages to block, but the American is upping the pace in this fight early.

Britain's own Michael Bisping is keenly watching this fight from the TV gantry.

Here we go, with the former champion landing a sharp kick early against the southpaw Romero.  Two very well matched former wrestlers, so this could be a tightly contested grappling contest - despite both also possessing impressive striking skills.

Jagroop Shinbt
BBC Sport at Madison Square Garden

Local lad Chris Weidman is a big fan favourite at tonight’s event with his roots embedded in New York. He would probably have received the biggest reaction of the night if it wasn’t for a certain "notorious" Irishman due to arrive later on…

Sorry Chris.

We want to hear from you as the night goes on.  Who are your picks for the title fights tonight?  Can Conor land a second title?  Does KK have enough to beat Joanna Violence? And can Thompson kick on against Woodley?  Let us know @bbcthree via the hashtag #UFConThree.

Image source, Getty Images

Now for a fight with quite the back story.

Yoel Romero and Chris Weidman’s bout at UFC 205 is supposed to set up the next contender for Britain’s own Michael Bisping, who won the middleweight title earlier this year and defended it against Dan Henderson in Manchester last month.

But Romero served a six-month suspension earlier this year after failing a steroid test. Even though it turned out to be from a tainted health supplement, Bisping’s anti-drugs stance means he’s publicly refused to fight the Cuban should Romero win tonight.

"If Yoel beats Chris, I honestly don't think I'll fight Yoel, because he tested positive for steroids," Bisping said on a radio interview last week. 

"I don't see why he should be rewarded. If Weidman wins, that's the fight I want.”

All eyes on the octagon, then...

The Mannequin Challenge has been sweeping social media over the last couple of weeks, and UFC's ringcard girls are the latest to take part...

Get in nice and early, soak up the NYC atmosphere, get yourself pumped up. Conor McGregor is in the building.

Image source, Getty Images