Filipe and Moises ALOU are two brothers who have had successful careers in Major League Baseball. Filipe was a six-time All-Star outfielder who played for the Montreal Expos, San Francisco Giants, Chicago Cubs, and Houston Astros. Moises was a three-time All-Star outfielder who played for the Pittsburgh Pirates, Florida Marlins, and Chicago Cubs. Together, they form the answer to the crossword clue 'ALOU' (4 letters).