Marshall's breakout season came in 1984 when he became a regular in the Dodgers' lineup. That year, he played in 145 games, hitting .284 with 21 home runs and 64 RBIs. His performance helped the Dodgers secure the National League West title, although they eventually lost to the San Diego Padres in the National League Championship Series. Marshall's ability to hit for power and average made him a valuable asset to the Dodgers' offense.
In 1985, Marshall continued to be a key player for the Dodgers, hitting .293 with 28 home runs and 95 RBIs. His efforts were instrumental in the Dodgers winning another division title. However, the team fell short in the NLCS once again, this time to the St. Louis Cardinals. Despite the postseason disappointment, Marshall's individual performance was recognized as he finished in the top ten in the National League MVP voting.
Marshall's tenure with the Dodgers lasted until 1988. During this period, he consistently provided solid offensive production, although his numbers fluctuated due to injuries and changes in the team's lineup. In 1988, he was part of the Dodgers team that won the World Series, defeating the Oakland Athletics. While his role had diminished compared to earlier years, Marshall contributed to the team's success with timely hitting and veteran leadership.
Following the 1988 season, Marshall was traded to the New York Mets. His time with the Mets was short-lived, as he struggled to find his form and was released after the 1989 season. He then signed with the Boston Red Sox, where he played the 1990 season. Marshall's performance with the Red Sox showed glimpses of his earlier success, but he was unable to recapture the consistency that had defined his peak years with the Dodgers.
Marshall's final season in the majors came in 1991 with the California Angels. He played in 40 games, hitting .239 with six home runs before being released mid-season. After leaving the majors, Marshall continued to play in minor league and independent league baseball for a few more years before retiring from professional baseball.
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