Two weeks after the spectacle that was Floyd Mayweather versus Conor McGregor, the UFC and boxing return to what they do best this weekend, promoting mixed martial arts and the sweet science in separate events.

The UFC will stage UFC 215 at Rogers Place in Edmonton, Alberta, on Saturday night, when Amanda Nunes finally defends her UFC women’s bantamweight belt. UFC flyweight champion Demetrious “Mighty Mouse” Johnson was scheduled to set the record for most consecutive title defenses at 11 by fighting Ray Borg, but the main event was canceled when Borg contracted a virus and was deemed unfit to compete by the UFC medical team.

Still, Nunes defending her title is a worthy main event that can awaken MMA fans suffering a hangover from Mayweather-McGregor two weeks ago at a less-than-full T-Mobile Arena in Las Vegas.

Mayweather, the unbeaten retired boxer, scored a 10th-round technical knockout over the UFC lightweight champion from Ireland who was fighting in his first professional boxing match. The Money Fight won’t break all the financial records it had hoped. The attendance was about 4,000 short of a sellout, and the gate of $55 million is less than the $72 million earned for Mayweather’s fight with Manny Pacquiao in May 2015. Early pay-per-view projections for Mayweather-McGregor were in excess of 6 million, but according to sources, the real figure will come in under the Mayweather-Pacquiao record of 4.6 million. By all accounts, it was a successful event, but the hype and price tag may have drained fans’ interest and wallets.

A more traditional format resumes Saturday, when Roman “Chocolatito” Gonzalez, of Nicaragua, tries to recapture his super-flyweight championship in a rematch with Thailand’s Srisaket Sor Rungvisai at the StubHub Center in Carson, Calif. Sor Rungvisai (43-4-1, 39 KOs) won a controversial majority decision over Gonzalez (46-1, 38 KOs) at Madison Square Garden last March.

Gonzalez was considered one of the top pound-for-pound boxers on the planet before suffering his first loss in that fight. The rematch is one of three super-flyweight bouts to be televised by HBO. It’s an appropriate lead in to next week’s much anticipated middleweight championship showdown between Gennady “GGG” Golovkin and Saul Canelo Alvarez at T-Mobile Arena.

The UFC and HBO cards appeal to their hardcore fans. Nunes (14-4) puts up her 135-pound women’s belt against Valentina Shevchenko, of Kyrgyzstan, in a rematch that was supposed to take place at UFC 213 on July 8. Nunes pulled out the day of the bout with chronic sinusitis. The Brazilian won a unanimous decision when the two faced each other at UFC 196 in March 2016.

She insists she’s 100 percent healthy for this fight.

“When I came back home, I went to the specialist and I’ve been good since then,” Nunes said. “In fact, it’s the best I’ve felt for a long time. The specialist did a really good job of taking care of this.”

Shevchenko (14-2) is ready to earn the belt Ronda Rousey once held.

“I’m 100-percent ready and it will be a good fight and a good show,” she said.

In contrast to the early betting action on Mayweather-McGregor, the wagering has been minimal thus far for this weekend’s combat lineup and the Canelo-GGG bout on Sept. 16.

“It’s kind of slow right now,” said Jay Rood, vice president of race and sports for MGM Resorts. “We’re getting Canelo bets on the underdog to where we moved down from minus-170 for Triple-G to minus-145. I imagine next week we’ll start to see good two-way action and probably a little bit more or stronger support for Triple-G.”

Looking ahead, Premier Boxing Champions will stage a junior middleweight triple-header at Barclays Center on Oct. 14. Erislandy Lara, Jermell Charlo and Jarrett Hurd will be defending titles. Meanwhile, UFC 217 is set for Nov. 4 at Madison Square Garden, where Georges St. Pierre comes off a long layoff to challenge middleweight champion Michael Bisping and Cody Garbrandt defends his bantamweight title against former champion T.J. Dillashaw.