Four-division champion Stevenson signs with Zuffa Boxing

Four-division world champion Shakur Stevenson has signed a deal with Zuffa Boxing. The 29-year-old American won all 25 of his professional fights and captured the WBO light-welterweight belt in February by defeating Teofimo Lopez. After the bout he called for a fight against Britain's Conor Benn, who is also signed to Zuffa.

"Line them up, one by one, and I'll beat all the top guys once I get them in front of me," Stevenson said.

previously secured world titles at lightweight, featherweight and super-featherweight. He also won bantamweight silver at the 2016 Olympic Games in Rio de Janeiro. "Shakur is one of the best pound-for-pound fighters in the world," Zuffa Boxing's president said.

Company plans Zuffa Boxing, founded by its president and backed by Saudi Arabian funding, seeks to rival established promoters. The company signed British welterweight Benn in February and later added IBF cruiserweight world champion Jai Opetaia, who was stripped of his IBF title after the move.

It remains to be seen if Stevenson will have his belts taken from him. Zuffa Boxing aims to amend the Muhammad Ali Reform Act in the U.S. to allow a UFC-style model that would let the company operate as both promoter and sanctioning body.