Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Year | Men's singles | Women's singles | Men's doubles | Women's doubles | Mixed doubles |
| --- | --- | --- | --- | --- | --- |
| 2004.0 | Yuichi Ikeda | Kati Tolmoff | Theodoros Vekos George Patis | Kati Tolmoff Solenn Pasturel | Ilkka Nyqvist Leena Löytömäki |
| 2005.0 | Jean-Michel Lefort | Kati Tolmoff | Benoit Azzopard Baptiste Careme | Piret Hamer Helen Reino | Jean-Michel Lefort Akvile Stapusaityte |
| 2006.0 | Kęstutis Navickas | Kati Tolmoff | Andrej Ashmarin Anton Nazarenko | Claudia Vogelgsang Caren Hückstädt | Adam Cwalina Malgorzata Kurdelska |
| 2007.0 | Kristian Nielsen | Kati Tolmoff | Tuomas Nuorteva Mikko Vikman | Lucia Tavera Sandra Chirlaque | Anton Nazarenko Evgenia Antipova |
| 2008.0 | No competition | No competition | No competition | No competition | No competition |
| 2009.0 | Ville Lång | Tatjana Bibik | Naoki Kawamae Shoji Sato | Cai Jiani Rong Bo | Zhang Yi Cai Jiani |
| 2010.0 | Cancelled | Cancelled | Cancelled | Cancelled | Cancelled |
| 2011.0 | Ville Lång | Michelle Kit Ying Chan | Peter Käsbauer Josh Zurwonne | Selena Piek Iris Tabeling | Jacco Arends Selena Piek |
| 2012.0 | Ville Lång | Judith Meulendijks | Laurent Constantin Sebastien Vincent | Selena Piek Iris Tabeling | Dave Khodabux Selena Piek |
Question:
Who played Men's singles in 2007?
Answer:
Kristian Nielsen