Former major league infielder Mario Guerrero has passed away, his family told reporters over the weekend (relayed by Enrique Rojas of ESPN). He was 73 years old.
Guerrero, a native of the Dominican Republic, started his professional career when he signed with the Yankees in 1968. The right-handed hitting infielder spent four seasons in the New York farm system, playing his way to Triple-A. Midway through the 1972 campaign, he was dealt to the Red Sox as a player to be named later in the deal that saw New York acquire future Cy Young winner Sparky Lyle.
Within one season, Guerrero made his MLB debut in Boston. A light-hitting middle infielder, he played in 66 games with the Sox as a rookie. Guerrero was entrusted with the Opening Day start at shortstop the following season, ultimately appearing in 93 games and hitting .246/.282/.282.
Going into the 1975 campaign, Boston traded Guerrero to the Cardinals for a player to be named later. He spent a season-plus bouncing on and off the St. Louis roster before being traded again in May ’76 — this time to the Angels for a pair of players who never reached the majors. Guerrero played in just over half of California’s games the next two seasons, hitting .283/.298/.342 over 540 trips to the plate.
Guerrero signed with the Giants over the 1977-78 offseason. Before he could play a game, they moved him to the A’s as a player to be named later in the trade that sent Vida Blue to San Francisco a month prior. Guerrero got Opening Day nods at shortstop in Oakland in two of the next three seasons. He had arguably the best year of his career in 1978, hitting .275/.302/.345 in a personal-high 143 games.
His MLB career came to a close when he was released by the Mariners going into the 1981 campaign. Guerrero played in parts of eight big league seasons, logging a little more than 2400 plate appearances across 697 contests. He hit .257/.285/.312 while playing for four different franchises. Guerrero never posted particularly strong offensive numbers, but clubs trusted him enough as a defender to give him nearly 4600 innings of shortstop work in the big leagues.
MLBTR sends our condolences to his family, loved ones, friends and former teammates.