Joel Alberto Piñeiro (Spanish pronunciation: [xoˈel piˈɲejɾo], /dʒoʊˈɛl pɪnˈjɛəroʊ/; born September 25, 1978) is a Puerto Rican former professional baseball pitcher. He played in Major League Baseball (MLB) for the Seattle Mariners, Boston Red Sox, St. Louis Cardinals, and Los Angeles Angels of Anaheim. He officially retired after appearing on the 2017 World Baseball Classic roster for Puerto Rico.