Very bad news...it looks like my knee injury is ITB (Ilitiobial Band Syndrome) and tomorrow after my first physiotherapist visit I will have more info about my chances to be ready by March 21st for my second challenge HIM Singapore 2010.
To know more about this injury, I attach a good article:
http://www.time-to-run.com/injuries/thebig5/itb.htm
I am very frustated...but will keep my fingers crossed until tomorrow, and will update you about any new!

"XTB" Xavi.