Demetrious Johnson has announced his retirement from mixed martial arts The 38-year-old held the UFC flyweight championship between 2012 and 2018 Demetrious Johnson's illustrious career in mixed ...

Demetrious Johnson: "I mean, his career was kind of up and down, but very successful because he made a lot, a lot of money." ...

Johnson is an investor in the young enterprise startup, which provides businesses with data and voice services. Founder and CEO Rick Crabbe got to know him while training at the same MMA gym.

Demetrious Johnson, one of the greatest fighters to ever strap on a pair of mixed martial arts gloves, announced his retirement at ONE 168 in Denver on Friday.

Unfortunately for Brazil's finest, Johnson won't be swayed — no matter the offer presented. "There is no number," Johnson said when asked about a price he'd need to fight again.

Demetrious Johnson in his Aug. 4, 2018 controversial loss to Henry Cejudo Zuffa LLC via Getty Images “You can’t fight forever,” Johnson said.

Demetrious Johnson is well known for his fast hands in the ring, but when the gloves are off his fingers are pretty nimble as well. “Mighty Mouse”Johnson left UFC for ONE Championship in 2018 ...

If Demetrious Johnson did not arrive in the promotion, I think I'd be fighting someone else for the fourth time or another guy from Kazakhstan. I think he came in and put more levels on our division.

Demetrious "Mighty Mouse" Johnson is calling it a career.. The former UFC flyweight champion, current ONE Championship flyweight champion and arguably one of the greatest mixed martial artists of ...