Last month, former UFC fighter Jake Shields posted a challenge to «the toughest trans men» to a fight, and one answered the call.

Mack Beggs, a transitioning biological woman from Texas, posted on Instagram that she was willing to take on Shields.

After Shields claimed not to have heard back from any trans fighters, he revised his offer, saying he would face former UFC fighter Mike Jackson and 10 trans fighters simultaneously.

«This is a serious offer, go prepare your team.» Shields tweeted on April 20..

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Trinity junior Mack Beggs waits for a signal from the referee in the final round of the 6A Girls 110 pound division during the Texas State Wrestling tournament on February 25, 2017, at the Berry Center in Cypress, Texas. (Leslie Plaza Johnson/Icon Sportswire via Getty Images)

But Beggs wants to enter the Octagon with Shields one on one.

«We’re just going to make this an official call, but Jake Shields, I’ll take you up on your offer,» Beggs said. via OutKick. «But the offer is not going to be 10 against one and 10 trans men, you are going to be fighting for the rest of the night.

«You’re going to do a one-on-one fight. You’re going to do it right. If you’re going to call yourself a fighter, do it fucking right.»

Beggs said it was «disrespectful to the sport of MMA» to «call 10 trans men» and say he would «scream» them.

Beggs, 24, added that Shields and «like-minded people» have a «fetish» for transgender people in their defense of trans wrestlers.

«It’s the fact that all of you are so obsessed and hyper-obsessed and have some fetish with trans women that you even forget that we’re fucking here, and we’re going to fuck you.» above.»

Jake Shields weighing in

Jake Shields steps on a scale during the weigh-in for UFC 171 at Gilley’s Dallas on March 14, 2014, in Dallas, Texas. (Jeff Bottari/Zuffa LLC/Zuffa LLC via Getty Images)

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Beggs then directed a message to Shields.

«I’m specifically going to fuck you over, Jake Shields,» Beggs said.

Shields saw that the challenge was accepted and is ready to go.

«My offer is legitimate, so please ask them to contact me so you can start building your team.» Shields tweeted.

Shields wasn’t afraid to throw a virtual jab either.

«This thing thinks it can beat me in a fight,» he tweeted Friday with a palm face emoji.

Shields also joked that Bud Light would sponsor the trans fighters, a dig into the brewing company’s partnership with trans influencer Dylan Mulvaney.

Beggs was in the middle of transition while in high school and state rules forced Beggs to fight the girls. Beggs won the Texas women’s 110-pound championship in 2017 and 2018 against the same girl, Chelsea Sanchez. Beggs went 79-0 in those two years.

Mack Beggs Medals

Trinity junior Mack Beggs, center, receives a medal for winning the state championship in the 6A girls’ 110 pound weight class at the Texas State Wrestling Tournament on February 25, 2017, at the Berry Center in Cypress, Texas. (Leslie Plaza Johnson/Icon Sportswire via Getty Images)

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Several potential opponents lost matches against Beggs because the wrestler was taking testosterone during the transition, which sparked controversy.

Beggs did not fight at the collegiate level due to surgery, while Shields fought for the UFC welterweight championship at UFC 129. He lost to Georges St. Pierre.