(Getty)Reports made the rounds on Sunday that this weekend's bout between Gegard Mousasi and Alexander Gustafsson was off. News outlets from Sweden said Gustaffson suffered a cut on his face that would take weeks to heal, and doctors wouldn't clear him. But the UFC disagrees.

UFC president Dana White told MMA Fighting that the bout is still on. Mousasi-Gustafsson is set for the main event for Saturday's card in Stockholm.

"The [Swedish Mixed Martial Arts Federation] has not said he can't fight, and he wants to fight," White texted to reporter Ariel Helwani.

Gustafsson is from Sweden and is popular in his home country. Besides wanting to fight in front of his home crowd, Gustafsson has another incentive to want the fight with Mousasi to happen. He's riding a six-fight win streak, with his last win coming over former UFC light heavyweight champ Mauricio "Shogun" Rua. A win over Mousasi could put Gustafsson on the top of the pile of 205 lbers looking for a shot at the title. He even has plans to push for a title shot after the fight.

"My biggest concern right now is Mousasi," Gustafsson said in early March. "That's my biggest focus. It's the only thing I think of right now. I don't really think about [being No. 1] that much. I'm going to grab the mic from whoever has it after the fight and I'm going to challenge the champ after this fight, so let's see what happens."

But a facial laceration could thwart his plans. The fight is on, but it should be an interesting week as we watch if the fight still happens on Saturday.

Chan Sung Jung talks to a fan. (Getty)

It's been a slow week for MMA, but it's likely to pick up as we start an eventful April. In this last week of March, who was hot or who was not?

Hot — Boston: According to a tweet from UFC president Dana White, the promotion is headed back to Boston, his hometown. Fox's new channel, Fox Sports 1, will get its first UFC event with this card, scheduled for Aug. 17.

Not — Commissions: First, Nick Diaz's camp said his weigh-in at UFC 158 was mishandled by the commission in Quebec. Then, Andrei Arlovski's camp said there was a timing error at the World Series of Fighting 2 card that caused Arlovski to take extra damage. Commissions' doing things right is necessary for the sport to grow, so mistakes like these are worrisome.

(Getty)Just days after Nick Diaz's camp criticized the athletic commission in Quebec for their handling of his UFC 158 weigh-in with UFC welterweight champ Georges St-Pierre, another athletic commission is under fire. Jackson's MMA, the gym who backs Andrei Arlovski, said a timing error by the New Jersey State Athletic Control Board resulted in Arlovski's broken jaw.

Arlovski lost to Anthony Johnson in a World Series of Fighting bout on Saturday. Jackson's MMA posted on their Facebook about the timekeeping problem:

The NJ athletic commission was worried about the World Series of Fighting getting a new canvas and new corner pads for the cage they almost canceled the fight Saturday night. Unfortunately they forgot to get a time keeper that was trained properly. 1st round 5min 8 sec in the Andrei fight. A devastating blow was landed after the 5min mark. It's amazing how so much time is spent with over regulating but the simple things can cost dearly.

WSOF had to bring in a new canvas and pads when the ones they originally had were unsuitable. But the timing error is much worse. Check out this video via MMA Fighting, and listen to the wood clacking at the 10-second mark. The clock disappears from the screen at seven seconds. Even a generous countdown shows the fight went past the five-minute mark.

The worst part is that the damage Johnson caused came after the time should have expired. His jaw was broken, and it needed surgery for repair. It also raises questions on if the fight result would have been different if Arlovski wouldn't have been hurt late in the first round.

(Getty)Sunday will mark the end of the first quarter. It's been a busy three months in MMA, so it's a good time to look back at the past three months and see who rose above the rest.

Biggest upset: Did you expect to see Robbie Lawler walk away with the win over Josh Koscheck at UFC 157? What about Antonio Rogerio Nogueira beating former UFC light heavyweight champ Rashad Evans? But there's no question who scored the biggest upset of the first quarter of 2013. Antonio Silva's TKO of Alistair Overeem at UFC 156 left more than Overeem's jaw on the floor.

Best knockout: Vitor Belfort's knockout of Michael Bisping at the January UFC on FX was memorable, as was Tyron Woodley's 36-second dismantling of Jay Hieron at UFC 156. Wanderlei Silva, Robbie Lawler and a slew of Bellator fighters have posted impressive knockouts. But the one that had everyone talking was on "The Ultimate Fighter." Uriah Hall's knockout of Adam Cella* was perfectly executed, and had the rest of the TUF house worried about Hall's skills. For that, Hall wins knockout of the first quarter.

The flying arm bar is one of those submissions that happens so quickly, that you need to look twice to realize what happened. Skip to the 1:10 mark in this video and you'll see Oliver Fontaine pull it off at the Lyon Fighting Championship in France. And you have to feel for his opponent, Sofian Benchohra, who never saw the arm bar coming. With a record of 4-7-1, he hasn't won a fight since October of 2010.

Thanks, MMA Fighting.

(Getty)For Americans visiting Canada, the cell phone charges can sometimes creep up on you. Your phone will work the same, but weeks later, you get a shocking cell phone bill. UFC featherweight Darren Elkins wasn't going to get hit with that massive phone bill during his trip to Montreal for UFC 158. He ignored phone calls.

[Also: Video blog shows the other side of UFC's Dana White]

Of course, that also meant he nearly missed his chance at filling in at UFC on Fox 7 after Clay Guida pulled out of his bout with Chad Mendes because of an injury.

"Up there (in Canada) I had my phone turned off," Elkins today told MMAjunkie.com Radio "You've got those ridiculous roaming charges and stuff."

His manager ran him down and broke the news of the potential fight. Elkins will face Mendes, the one-time featherweight contender, just a month after fighting Antonio Carvalho and winning with a controversial TKO. Elkins is on a five-fight win streak, so a win over Mendes could push him closer to a title shot.

It's the kind of fight that's definitely worth the roaming charges.

With no fight this week, UFC president Dana White released a video blog that shows what he and his "idiot friends" do when visiting his place in Maine. Yes, there's plenty of NSFW language. Take a look and see what White and his friends are up to, including:

1. Talk one friend into trying the spiciest hot sauce ever.
2. Blow things up.
3. Shoot guns while calling each other a nickname for a cat.
4. Apple-picking, though it doesn't look like they're picking honeycrisp apples, the finest of all apple varieties.
5. Milk goats in a way that looks pretty uncomfortable for the goat.
6. Drive motorcycles.

[Also: Nick Diaz can cry foul all he wants, but he's not getting a rematch with GSP]

And a little advice for Nick the Tooth. I was once told at an Indian restaurant, after eating very spicy food, that beer or soda pop are your best bets to cool a burning mouth.

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(Getty)It was a fight-packed episode of "The Ultimate Fighter" as Tuesday night's episode had two fights and visits from two different champs.

Ronda Rousey stops by -- Kelvin won his first match, so he was rewarded with a visit with UFC women's bantamweight champion Ronda Rousey. It wasn't just for show, either, as Rousey showed Team Sonnen several judo techniques. She also pumped them up with some of her favorite "Momisms," including the choice line, "No one has the right to beat you."

Collin Hart (Team Jones) vs. Kelvin Gastellum (Team Sonnen)

Gastellum said in his pre-fight interviews that no one respects his boxing. Uh, they will now. Gastellum struck Hart quickly with a left hook that sent him down to the ground. Hart hit his head on the canvas, rolled over, and took a few more punches before the fight was stopped. It was a vicious, vicious knockout.

Mike Tyson! Oh, hey, no big deal. Mike Tyson showed up at the training center. He stopped in the locker rooms to say hello to the fighters.

Dylan Andrews (Team Jones) vs. Luke Barnatt (Team Sonnen)

A fight for the Queen as Australian Andrews takes on Brit Barnatt. Andrews got the takedown early in the first round, and Barnatt had no answer on the ground for much of the round. Andrews tried for a few chokes, but was unsuccessful.

Barnatt did a much better job in the second, creating offense from the bottom. This led to a third round, where Andrews took over. He knocked a clearly tired Barnatt around until he finally knocked him out in the third round.

Everyone was impressed with how Andrews fought through the third round, including the man signing the checks.

"I'm blown away and impressed with Dylan. That's how it's done here." — Dana White

The next two quarterfinals are next week, and they'll have a tough act to follow.