![2019 Badminton World Championships - St. Jakobshalle Basel, Basel, Switzerland - August 20, 2019 Germany's Mark Lamsfuss and Isabel Herttrich react during their second round mixed doubles match against China's Zheng Siwei 2019 Badminton World Championships - St. Jakobshalle Basel, Basel, Switzerland - August 20, 2019 Germany's Mark Lamsfuss and Isabel Herttrich react during their second round mixed doubles match against China's Zheng Siwei](https://c8.alamy.com/comp/2CM1A96/2019-badminton-world-championships-st-jakobshalle-basel-basel-switzerland-august-20-2019-germanys-mark-lamsfuss-and-isabel-herttrich-react-during-their-second-round-mixed-doubles-match-against-chinas-zheng-siwei-and-huang-yaqiong-reutersarnd-wiegmann-2CM1A96.jpg)
2019 Badminton World Championships - St. Jakobshalle Basel, Basel, Switzerland - August 20, 2019 Germany's Mark Lamsfuss and Isabel Herttrich react during their second round mixed doubles match against China's Zheng Siwei
![2019 Badminton World Championships - St. Jakobshalle Basel, Basel, Switzerland - August 19, 2019 Germany's Isabel Herttrich and Mark Lamsfuss in action during their mixed doubles first round match against Switzerland's Celine 2019 Badminton World Championships - St. Jakobshalle Basel, Basel, Switzerland - August 19, 2019 Germany's Isabel Herttrich and Mark Lamsfuss in action during their mixed doubles first round match against Switzerland's Celine](https://c8.alamy.com/comp/2ED7NY6/2019-badminton-world-championships-st-jakobshalle-basel-basel-switzerland-august-19-2019-germanys-isabel-herttrich-and-mark-lamsfuss-in-action-during-their-mixed-doubles-first-round-match-against-switzerlands-celine-burkart-and-oliver-schaller-reutersarnd-wiegmann-2ED7NY6.jpg)
2019 Badminton World Championships - St. Jakobshalle Basel, Basel, Switzerland - August 19, 2019 Germany's Isabel Herttrich and Mark Lamsfuss in action during their mixed doubles first round match against Switzerland's Celine
![2019 Badminton World Championships - St. Jakobshalle Basel, Basel, Switzerland - August 20, 2019 Germany's Mark Lamsfuss and Isabel Herttrich shake hands with China's Zheng Siwei and Huang Yaqiong after their second 2019 Badminton World Championships - St. Jakobshalle Basel, Basel, Switzerland - August 20, 2019 Germany's Mark Lamsfuss and Isabel Herttrich shake hands with China's Zheng Siwei and Huang Yaqiong after their second](https://c8.alamy.com/comp/2CMNG6J/2019-badminton-world-championships-st-jakobshalle-basel-basel-switzerland-august-20-2019-germanys-mark-lamsfuss-and-isabel-herttrich-shake-hands-with-chinas-zheng-siwei-and-huang-yaqiong-after-their-second-round-mixed-doubles-match-reutersarnd-wiegmann-2CMNG6J.jpg)