Peter Zethraeus
Peter Zethraeus turned a training visit to Brazil into an invitation that brought Marcelo Yogui to teach BJJ in Stockholm.
Biography
Sources for this profile
Grapplingbloggen, Marcelo Yogui interview, April21,2011(opens in a new tab)
Peter Zethraeus is Swedish; Marcelo Yogui recalled meeting him during a visit to Brazil.
Where in the source: Answer on arriving in Sweden, named Swedish visitor.
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Seeing training from his flat prompted Zethraeus to visit the academy; a Portuguese-speaking friend helped him communicate with Yogui, who then spoke no English.
Where in the source: Sweden answer, flat and Portuguese-speaking companion.
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After training with Yogui for two weeks, Zethraeus invited him to teach at a friend’s academy in Sweden.
Where in the source: Sweden answer, training period and invitation.
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Zethraeus returned with a plane ticket, and Yogui subsequently taught at Thomas Rasmussen’s Kampsportskolan in Stockholm.
Where in the source: Sweden answer, ticket and named host academy.
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BJJEE, Marcelo Yogui Q&A, May30,2012(opens in a new tab)
Yogui described his first Swedish teaching venue as a Muay Thai club, later called Stockholm Muay Thai.
Where in the source: Answer3, Kampsportskolan and its later name.
Accessed:
Yogui BJJ, Marcelo’s expanded first-person biography(opens in a new tab)
In his own biography, Yogui credits his friend Zethraeus with giving him his first opportunity to present BJJ in Sweden.
Where in the source: Read Marcelo’s Story panel, paragraph naming Peter Zethraeus.
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Fighter Magazine, Anders Eriksson’s Swedish BJJ history, January24,2014(opens in a new tab)
Anders Eriksson’s history of Swedish BJJ identifies Zethraeus’s initiative as the reason Yogui began teaching at Stockholm’s Kampsportsskolan during the sport’s early Swedish development.
Where in the source: Section BJJ kommer till Sverige, opening paragraph.
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Fighter Magazine, Babak Ashti interview via Budokampsport.se, March29,2017(opens in a new tab)
Recalling his period at Stockholm Muaythai, Babak Ashti credited Zethraeus with opening his eyes and helping him find direction during a difficult phase.
Where in the source: Paragraph after Ashti’s move from taekwondo to Stockholm Muaythai.
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MMAnytt, written account of Babak Ashti’s podcast, May1,2025(opens in a new tab)
MMAnytt’s2025 account of Ashti’s podcast appearance names Zethraeus and Marcelo Yogui as the people who introduced him to grappling and BJJ.
Where in the source: Section Från Åkersberga till Rio, paragraph naming both teachers.
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Lineage
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Open lineage