Table:
text: English Table Tennis Grand Prix Circuit
2009/10
2009/10
Date_Location Mens_singles Womens_Singles U21_Mens U21_Womens Mixed_Restricted Mixed_Veteran
November 2009 Bristol Po Huang Chen Naomi Owen Damien Nicholls Claire Nelson Mike Marsden Costas Papantoniou
October 2009 Newcastle Niall Cameron Lindsey Reynolds Matt Ware Melissa Wright Stephen Munson Eddie Smith
September 2009 Exeter Matt Ware Egle Adomelyte Matt Ware Charlotte Carey Jonathan Crawford Paul Whiting

text: English Table Tennis Grand Prix Circuit
2009/10
2009/10
Date_Location Mens_singles Womens_Singles U21_Mens U21_Womens Mixed_Restricted Mixed_Veteran
July 2010 Doncaster Liam Pitchford Kelly Sibley Alim Hirji Karina Le Fevre Will Bayley Abdul Wuraola
June 2010 Hereford Ricardo Walther Naomi Owen Ricardo Walther Karina Le Fevre Umair Mauthor Tomasz Rzeszotko
May 2010 Wolverhampton Gavin Rumgay Joanna Parker Chris Doran Emma Vickers Mike Marsden Tomasz Rzeszotko
April 2010 Blackpool Chris Doran Kelly Sibley Matt Ware Emma Vickers Mike Marsden Tomasz Rzeszotko
February 2010 Salisbury Gavin Rumgay Charlotte Carey Matt Ware Charlotte Carey Umair Mauthor David Butler
December 2009 London Chris Doran Egle Adomelyte Chris Doran Emma Vickers Umair Mauthor Abdul Wurola

Question: Who was the Men's U21 winner if Mike Marsden was the Mixed Restricted winner and Claire Nelson was the Women's U21 champion at the English Table Tennis Grand Prix circuit?