Oskar Leube


Oskar Münchow is a German professional wrestler. He is signed to New Japan Pro-Wrestling, where he performs mononymously as Oskar and is a member of Unbound Co.. He is one half of the current IWGP Tag Team Champions with Yuto-Ice as the Knock Out Brothers in their first reign. He has also competed for the German promotion Westside Xtreme Wrestling where he is a former wXw Academy Trophy Champion.
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Professional wrestling career

Training and early career (2019–2022)

In January 2019, Münchow began training at the Fale Dojo in New Zealand. Two months later, on 3 March, Münchow had his professional wrestling match. Beginning of January 2020, he trained in the NJPW Dojo for the first time before returning to Germany. In November 2021, Münchow began to compete in Westside Xtreme Wrestling under the ring name Oskar. On November 13, in his wXw debut, Oskar defeated Norman Harras by pinfall. On 5 March 2022, at wXwNOW & Friends, he won the wXw Academy Trophy Championship defeating Goldenboy Santos.

New Japan Pro-Wrestling (2022–present)

Young Lion (2022–2024)

On 20 November 2022, at Historic X-Over, Münchow made his NJPW debut under the ring name Oskar Leube. At the event, Leube, Kosei Fujita, Yuto Nakashima, Ryohei Oiwa lost to Alex Coughlin, Clark Connors, Gabriel Kidd and Kevin Knight. Three days later, at night two of the Super Junior Tag League, Leube had his first win in NJPW when he teamed up with Fujita to defeat Oiwa and Nakashima. Throughout 2023, Leube would continue to wrestle primary in the undercard and opening matches as a Young Lion as he gained experience. At New Year's Dash 2024, he had his final match as a Young Lion in New Japan as it was announced he was going on excursion with Yuto Nakashima. The two would go to Europe where they would begin competing in promotions such as RevPro Wrestling. The duo would go by the tag team name "Young Blood".

Foreign excursion (2024–2025)

At RevPro’s High Stakes 2024 event, Leube and Nakashima defeated Kieron Lacey and Mark Trew in a tag team match. They also participated in a tag team match to defeat David Francisco and Goldenboy Santos in a street fight at a subsequent RevPro event. In wXw, Nakashima and Leube won the wXw World Tag Team Championship at the World Tag Team Festival in October 2024, defeating KXS in the finals. In March 2025, they lost the titles to Big Bucks, ending their reign at 152 days.

Knock Out Brothers (2025–present)

On the final night of G1 Climax 35 on August 17, 2025, Bullet Club War Dogs leader David Finlay introduced Leube and Nakashima as the newest members of Bullet Club as they attacked Satoshi Kojima, Taichi and Katsuya Murashima. Oskar and Yuto also changed their tag team name to "Knock Out Brothers". At Destruction in Kobe, Oskar and Yuto defeated Taichi and Tomohiro Ishii to win the IWGP Tag Team Championship, marking their first championship in NJPW.
After Wrestle Kingdom 20, at New Year Dash!!, David Finlay and Yota Tsuji announced the dissolution of Bullet Club and Mushozoku, replacing the alliance with Unbound Company, which was a complete merger.

Championships and accomplishments

New Japan Pro-Wrestling