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League of Ireland Horse Racing TV Listings GAA Fixtures The Video Review Sport meets news, current affairs, society & pop culture Rugby Weekly Extra Dive into all the news and analysis 3 times a week The Football Family Weekly insights from the week’s big talking points Advertisement More Stories Zac Porthen, centre, has impressed for the Stormers this season.Luca Sighinolfi/INPHO FreeTeam news Uncapped Stormers prop catches Rassie's eye ahead of Springboks' clash with Japan Zachary Porthen will make his South Africa debut in Wembley on Saturday. 7.08pm, 28 Oct 2025 Share options ZACHARY PORTHEN WILL make his South Africa debut against Japan at Wembley on Saturday after being named in the starting side by coach Rassie Erasmus. The 21-year-old tighthead prop, a former Junior Springbok captain, has been called into the side after impressing in a handful of games for the Cape Town-based Stormers in the United Rugby Championship. He will be surrounded by experienced players for world champions South Africa’s opening Autumn Nations Series international, packing down alongside hooker with Malcolm Marx and fellow prop Ox Nche. Erasmus has retained 16 of the 23 involved in the Springboks’ 29-27 win over Argentina at Twickenham earlier in October that secured a second straight Rugby Championship title. World Cup winners Kurt-Lee Arendse, Franco Mostert and Lood de Jager return after missing the final rounds of the Rugby Championship. Arendse is on the wing, with Mostert in a back row also featuring South Africa captain Siya Kolisi and Jasper Wiese. De Jager starts at lock alongside Leinster’s RG Snyman. Sacha Feinberg-Mngomezulu, one of the breakout stars of the Rugby Championship, remains at out-half, with Cobus Reinach at scrum-half. Advertisement Cheslin Kolbe has been switched to full-back from his usual wing position, with Damian de Allende and Jesse Kriel forming a midfield combination that indicates the Springboks will look to play a running game against Japan. Japan arrive in London following an agonising 19-15 loss to coach Eddie Jones’s native Australia in Tokyo last weekend. After the Japan match, record four-time world champions South Africa face France in Paris, Italy in Turin, Ireland in Dublin and Wales in Cardiff on successive Saturdays. South Africa (v Japan) 15. Cheslin Kolbe 14. Ethan Hooker 13. Jesse Kriel 12. Damian de Allende 11. Kurt-Lee Arendse 10. Sacha Feinberg-Mngomezulu 9. Cobus Reinach 2. Malcolm Marx 3. Zachary Porthen 4. RG Snyman 5. Lood de Jager 6. Siya Kolisi (capt) 7. Franco Mostert 8. Jasper Wiese Replacements: 16. Johan Grobbelaar 17. Gerhard Steenekamp 18. Wilco Louw 19. Ruan Nortje 20. Andre Esterhuizen 21. Kwagga Smith 22. Grant Williams 23. 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