Powerful centre-back Nelsen told BBC Radio Lancashire: "I put the new manager in a difficult position in all honesty and I really appreciate that he's allowed me to go.
"With New Zealand we don't get to go to very many major tournaments and the Olympics is obviously a major one and I really wanted to play.
Beijing 2008
Minister: 2012 football team could be all-English
10/03/2009 AT 12:52
"Thankfully he's met me half-way and let me go for the first two games."
Beijing 2008
Storm halts Japan and Argentina
29/07/2008 AT 18:06
Beijing 2008
FIFA to rule on player release
29/07/2008 AT 17:25