What team did Luis Lopez play for that is based in Montreal, Quebec? 
Luis Lopez (third baseman):  He played parts of two seasons in the major leagues: 2001 for the Toronto Blue Jays and 2004 for the Montreal Expos. Montreal Expos: The Montreal Expos (French: "Les Expos de Montréal" ) were a Canadian professional baseball team based in Montreal, Quebec.
Montreal Expos