Muriel (born March 13, 1959 in Vega Baja, Puerto Rico) is a former player and coach in Major League Baseball. An infielder, Aguayo played with the Philadelphia Phillies from 1980 to 1988. During the season, Aguayo was traded for pitcher Amalio Carreno to the New York Yankees. As a free agent, Aguayo signed with the Cleveland Indians for the season. Aguayo performed poorly, and was released by the team. His career batting average is .236.