david casinos sierra (born february 15, 1972 from valencia) is a track and field athlete from spain. he has a disability: he is blind and is t11/f11/b1 type athlete. he competed at the 2000 summer paralympics. he finished first in the shot put and fourth in the discus. he competed at the 2004 summer paralympics. he finished first in the shot put and seventh in the discus. he raced at the 2008 summer paralympics. he finished first in the shot put and fifth in the discus. he raced at the 2012 summer paralympics. he finished first in the discus and fifth in the shot put.