Roberto Soldic has reportedly signed with the UFC, ending a short period of free agency after his ONE Championship deal expired. The 31-year-old Croatian, known as “Robocop,” arrives with a 21-4 record, plus one no contest, and is expected to compete at welterweight.
Roberto Soldic is reportedly UFC-bound, giving the promotion one of Europe’s most proven finishers at welterweight. The Croatian former two-division KSW champion has been added to the UFC website’s fighter listings, following reports from The MMA Matchmaker and Pelunaton, though the UFC has yet to announce his debut fight.
🚨NEW UFC FIGHTER🚨
Per the UFC Website, 🇭🇷Roberto Soldic (21-4) has signed with the #UFC !
He’s the former KSW double-champ.
H/T @pelunaton
P.S. Repost since I messed up the flag. Sorry my Balkanese followers !
P.S2 : He was added as a Welterweight#MMA pic.twitter.com/pQ8Frj5alc
— The Matchmaker (@MMA__Matchmaker) September 4, 2026
Soldic is a long-awaited addition for fans who followed his rise in Poland’s KSW. He carries a record built around stoppages: 19 of his 21 MMA wins have ended inside the distance, including 18 knockouts. That finishing record fits the reputation he formed long before the UFC move became reality.
🚨BREAKING NEWS🚨
🇭🇷Roberto Soldić (21-4) finalmente ha FIRMADO con la UFC, el croata de 31 años fue doble campeón de KSW y ahora competirá en el peso wélter
Roberto es un finalizador nato, 19 de sus 21 victorias han llegado antes del límite#UFC #MMA pic.twitter.com/Pk86Dr8jpF
— Pelunaton (@pelunaton) September 4, 2026
Roberto Soldic Signs with the UFC
The signing also comes after an uneven but brief stretch in ONE Championship. Soldic had just three MMA bouts for the promotion across more than two years, leaving his potential largely unexplored. Now, he gets a chance to restart at 170 pounds on the sport’s biggest stage.
Soldic became one of KSW’s central figures during an eight-win, one-loss run with the Polish promotion. He first won the KSW welterweight title in 2017, stopping reigning champion Borys Mankowski in the first round at KSW 41.
That championship reign hit a major interruption at KSW 43 in April 2018. Dricus du Plessis, then a rising South African contender years before his UFC title run, dropped Soldic with a left hook and finished him with punches in the second round to take the belt. It was a defining loss, but it did not take Soldic long to answer it.
Six months later, the pair met again at KSW 45. Soldic reclaimed the welterweight championship by knocking out du Plessis in the third round. The result remains a major line on Soldic’s resume because du Plessis later became UFC middleweight champion, while Soldic remains one of the few men to hold a knockout win over him.
Soldic later added the KSW middleweight title, becoming a simultaneous two-division champion. His KSW run included wins over Mankowski, Dricus du Plessis, Krystof Klaczek, Michal Pietrzak and Mamed Khalidov. The Khalidov victory, a second-round knockout in 2021, helped cement Soldic’s place as one of the promotion’s biggest stars.
At ONE 171 in Qatar in February 2025, Soldic flattened Saygid Guseyn Arslanaliev with a first-round punch at 1:55. It was his first victory for ONE and a clean ending to a frustrating stretch of inactivity. ONE’s official record lists Soldic at 1-1 with one no contest in the organization.
Soldic enters the UFC with elite experience, championship success in two divisions and a clear identity as a pressure striker who looks for decisive endings. He has competed at both welterweight and middleweight, but the reported plan is for his UFC campaign to begin at 170 pounds.