Pedzisa mutsara unotevera: Ulloa akaita mutambo wake wekutanga weEl Salvador mumutambo waAugust 1987 Pan American Mitambo vachipesana neTrinidad & Tobago uye akawana huwandu hwe31 caps, achiwana zvibodzwa zvisere. Akamirira nyika yake mumitambo 11 yeFIFA World Cup yekukodzera (maari akarova matanhatu) pamwe ne1991 uye
1993 UNCAF Nations Cups.