Swedish heavyweight Otto Wallin has signed with Zuffa Boxing.The 35-year-old from Sundsvall contemplated retirement after suffering a punishing loss to Derek Chisora in February 2025.Wallin is 28-3 as a professional and holds decent wins over Gassiev and BreazealeMark Robinson/MatchroomWallin was dropped twice and lost wide on points at Manchester’s Co-Op Live Arena.But after much deliberation, he returned to the ring last November to blow away the overmatched Chris Thomas inside two rounds in Atlantic City.Wallin will now look to continue rebuilding his career under Dana White‘s upstart promotion.Taking to Instagram on Thursday to announce the news, Wallin wrote: “I’m really excited to have signed with [Zuffa Boxing]. “Big things coming!”Zuffa’s heavyweight roster already includes former IBF heavyweight champion Charles Martin, two-time Olympic bronze medallist Ivan Dychko, and top-rated contender Efe Ajagba.Wallin makes a worthy addition to the list and becomes the third fighter in two days to join Zuffa after IBF super lightweight champion Richardson Hitchins and former super middleweight world title challenger Edgar Berlanga crossed over on Wednesday.Otto Wallin caused Tyson Fury problemsThe big Swede nearly pulled off one of the biggest upsets of the decade in 2019 when he met Tyson Fury in what was supposed to be a tune-up fight for a rematch with Deontay Wilder. In the third round, a cuffing blow from Wallin opened a massive gash above Fury’s right eye, which would later require 47 stitches and plastic surgery to fix.As the fight wore on, the tricky southpaw targeted the wound, turning Fury’s face into a crimson mess. Zuffa Boxing's growing rosterChristian Morales Conor Benn Da’Mazion Vanhouter Damoni Cato-Cain Daniel Barrera Daniyar Yeleussinov Dariial Kuchmenov Devin Gantt Devonte Williams Diego Torres Dominique Francis Edgar Berlanga Edwin De Los Santos Efe Ajagba Elias Diaz Emiliano Alvarado Emiliano Cardenas Eridson Garcia Ethan Perez Feargal Mccrory Floyd Diaz Guillermo Gutierrez Ivan Dychko Jai Opetaia Jalil Hackett Jamar Talley James Perella Jardae Anderson Jaybrio Pe Benito Jaycob Ramos Jesus Saracho Jonathan Rojas Jorge Lagunas Jorge Maravillo Jose “Rayo” Valenzuela Joshua Clark Joshua Juarez Julian Gomez Julian Rodriguez Justin Viloria Kevin Boakye Leonardo Padilla Leonardo Ruiz Marcus Harris Mark Beuke Mark Magsayo Max Ornelas Maxime Vaz Mihai Nistor Misael Rodriguez Oleksandr Gvozdyk Omar Trinidad Oscar Perez Oswaldo Molina Otabek Kholmatov Otto Wallin Pablo Rubio Jr Radivoje Kalajdzic Radzhab Butaev Raphael Monny Ricardo Candido Ricardo Salas Richardson Hitchins Robert Meriwether III Roberto Cruz Rocco Santomauro Ryan Maine Shane Mosley Jr Serhii Bohachuk Shinard Bunch Suray Mahmutovic Tony Hirsh Troy Nash Umar Dzambekov Vernon Brown Vic Pasillas Vlad Panin Fury required 47 stitches after Wallin opened up a horror cut during their 2019 boutGetty Images - GettyHowever, some excellent handiwork from Fury’s cutman, Jorge Capetillo, kept him in the fight as the Brit saw off Wallin over the distance.Wallin’s stock rose considerably in defeat, and a subsequent victory over former unified cruiserweight world champion Murat Gassiev paved the way for a high-profile fight with Anthony Joshua in December 2023.Unfortunately for Wallin, he was unable to rise to the occasion and was retired on his stool at the end of the fifth round.Since then, he has beaten two unheralded opponents either side of his loss to Chisora.Now 28-3 and seemingly a few years removed from his prime, Wallin’s move to Zuffa provides him with one last chance to roll of the dice. Boxing scheduleFor all the upcoming fights and results this year, check out talkSPORT.com’s boxing schedule.