• Nelsen completes move to Spurs as a free agent• Chance was 'something I couldn't turn down'Spurs have completed the signing of the New Zealand defender Ryan Nelsen after his contract was cancelled by Blackburn.The cancellation meant that the 34-year-old, who has played only once since April following a knee injury, was able to move outside the transfer window. He has signed a six-month deal at White Hart Lane, with a one-year option.Nelsen, who led his country at the World Cup in South Africa in 2010, was targeted by Tottenham's manager Harry Redknapp to replace Sebastien Bassong, who joined Wolves on loan on transfer deadline day.Nelsen said the move was an "absolute no-brainer… It's just an exciting opportunity at this stage of my caree...