Bill Buckner, an outfielder and first baseman whose long, solid career was overshadowed by a crushing error that cost the Boston Red Sox Game 6 of the 1986 World Series against the Mets, who went on to win the championship in seven, died on Monday. He was 69.

His death was confirmed in a statement by his family and shared on Twitter by the ESPN reporter Jeremy Schaap. The statement said Buckner had Lewy body dementia.

Buckner was tough on the field, battling injuries for much of his career, and dependable at the plate, registering a .300 batting average in seven seasons and amassing 2,715 hits and 174 home runs during his two decades in the major leagues.

Buckner came up through the Los Angeles Dodgers organization, starting in the minors under Tommy Lasorda, who would go on to manage the Dodgers themselves to great success. With Los Angeles, Buckner played in the 1974 World Series, which the team lost to the Oakland Athletics in five games.