UWFインターナショナル
Koslowski briefly competed as a professional wrestler for Japanese shoot style promotion UWF International. On December 20, 1992, he fought UWFi's top star Nobuhiko Takada in a losing effort at Ryōgoku Kokugikan. He wrestled a further eight time, with his final match coming almost a year later on December 5, 1993, where he lost to Kiyoshi Tamura.