![Germany's Marc Zwiebler returns the shuttlecock to Indonesia's Tommy Sugiarto during their men's singles semifinal match at the Indonesia Open badminton championship at Istora stadium in Jakarta, Indonesia, Saturday, June 15, 2013. Germany's Marc Zwiebler returns the shuttlecock to Indonesia's Tommy Sugiarto during their men's singles semifinal match at the Indonesia Open badminton championship at Istora stadium in Jakarta, Indonesia, Saturday, June 15, 2013.](https://c8.alamy.com/comp/2N7A4NF/germanys-marc-zwiebler-returns-the-shuttlecock-to-indonesias-tommy-sugiarto-during-their-mens-singles-semifinal-match-at-the-indonesia-open-badminton-championship-at-istora-stadium-in-jakarta-indonesia-saturday-june-15-2013-zwiebler-won-21-17-21-10-ap-photodita-alangkara-2N7A4NF.jpg)
Germany's Marc Zwiebler returns the shuttlecock to Indonesia's Tommy Sugiarto during their men's singles semifinal match at the Indonesia Open badminton championship at Istora stadium in Jakarta, Indonesia, Saturday, June 15, 2013.
![Germany's Marc Zwiebler plays against Ukraine's Dmytro Zavadsky at a mens singles badminton match of the 2012 Summer Olympics, Tuesday, July 31, 2012, in London. (AP Photo/Saurabh Das Stock Photo - Alamy Germany's Marc Zwiebler plays against Ukraine's Dmytro Zavadsky at a mens singles badminton match of the 2012 Summer Olympics, Tuesday, July 31, 2012, in London. (AP Photo/Saurabh Das Stock Photo - Alamy](https://c8.alamy.com/comp/2N9BJH6/germanys-marc-zwiebler-plays-against-ukraines-dmytro-zavadsky-at-a-mens-singles-badminton-match-of-the-2012-summer-olympics-tuesday-july-31-2012-in-london-ap-photosaurabh-das-2N9BJH6.jpg)
Germany's Marc Zwiebler plays against Ukraine's Dmytro Zavadsky at a mens singles badminton match of the 2012 Summer Olympics, Tuesday, July 31, 2012, in London. (AP Photo/Saurabh Das Stock Photo - Alamy
![Germany's Marc Zwiebler plays against Ukraine's Dmytro Zavadsky at a mens singles badminton match of the 2012 Summer Olympics, Tuesday, July 31, 2012, in London. (AP Photo/Saurabh Das Stock Photo - Alamy Germany's Marc Zwiebler plays against Ukraine's Dmytro Zavadsky at a mens singles badminton match of the 2012 Summer Olympics, Tuesday, July 31, 2012, in London. (AP Photo/Saurabh Das Stock Photo - Alamy](https://c8.alamy.com/comp/2N9BJD4/germanys-marc-zwiebler-plays-against-ukraines-dmytro-zavadsky-at-a-mens-singles-badminton-match-of-the-2012-summer-olympics-tuesday-july-31-2012-in-london-ap-photosaurabh-das-2N9BJD4.jpg)
Germany's Marc Zwiebler plays against Ukraine's Dmytro Zavadsky at a mens singles badminton match of the 2012 Summer Olympics, Tuesday, July 31, 2012, in London. (AP Photo/Saurabh Das Stock Photo - Alamy
![Ex-badminton professional Marc Zwiebler about the new stringster update 1.3.0 – now featuring pre-stretch. - Badlab - EN Ex-badminton professional Marc Zwiebler about the new stringster update 1.3.0 – now featuring pre-stretch. - Badlab - EN](https://www.badlab.de/files/Uploads/mygeodata/Marc-Zwiebler_BADLAB_Interview_stringster.png)