In 2006, she signed with the Finnish cosmetics company Lumene, along with her husband, tennis player Jarkko Nieminen.
The most famous resident of Masku is Finnish tennis player Jarkko Nieminen.
Koponen began his mandatory military service in the Lahti Military Academy in October 2007, participating in a special military service built for professional athletes such as Finnish tennis player Jarkko Nieminen.
Also competing were Cincinnati Masters quarterfinalist Mikhail Youzhny, Moscow runner-up Nicolas Kiefer, Jarkko Nieminen, Greg Rusedski and Fernando Verdasco.
Other seeded players were Australian Open quarterfinalist and Adelaide runner-up Jarkko Nieminen, Rotterdam semifinalist Gilles Simon, Nicolas Mahut, Marc Gicquel and Michael Berrer.
Other top seeds competing were 2007 Vienna semifinalist Juan Carlos Ferrero, recent Adelaide runner-up Jarkko Nieminen, Nicolás Almagro, Philipp Kohlschreiber and Albert Montañés.
The men singles featured ATP No. 5, Valencia titlist and French Open quarterfinalist David Ferrer, Queen's Club quarterfinalist Richard Gasquet, and Australian Open quarterfinalist and Adelaide runner-up Jarkko Nieminen.