Nelson Antonio Tapia Ríos (born 22 September 1966 in Molina, Chile) is a retired Chilean football goalkeeper. He is nicknamed Simpson because during his career he wore a hair style similar to cartoon character Bart Simpson.He made his debut for the Chilean national team in 1994 against France. After his last match thus far, a 0-5 loss against Brazil in 2005, the tally is at 73 caps.