Jefferson made his MLB debut with the Orioles on June 23, 1973. During his time with Baltimore, he was primarily used as a starting pitcher. However, breaking into a rotation that included the likes of Jim Palmer and Mike Cuellar was no easy task. Jefferson's tenure with the Orioles was relatively short, and he was traded to the Chicago White Sox in December 1974.
With the White Sox, Jefferson found more opportunities to showcase his skills on the mound. He spent two seasons in Chicago, where he was utilized both as a starter and a reliever. His time with the White Sox was marked by a fluctuating performance, but he managed to demonstrate his ability to handle a variety of pitching roles.
In 1976, the Toronto Blue Jays selected Jefferson in the expansion draft, making him one of the original members of the franchise. This move to Toronto provided Jefferson with a fresh start and a chance to establish himself as a regular in the starting rotation. Over the next four seasons with the Blue Jays, Jefferson became a familiar face on the mound. He pitched in a variety of situations, often facing the challenge of competing against some of the league's toughest lineups.
Jefferson's tenure with the Blue Jays was characterized by his durability and willingness to take the ball whenever called upon. Despite the team's struggles during its early years, he remained a steady presence in the rotation. His best season with Toronto came in 1977, when he recorded 9 wins and posted a respectable earned run average.
After his stint with the Blue Jays, Jefferson's career continued with the Pittsburgh Pirates and the California Angels. His time with these teams was brief, and he primarily served as a relief pitcher. By the end of the 1981 season, Jefferson's major league career had come to a close.
Throughout his career, Jesse Jefferson pitched in 238 games, starting 142 of them. He finished with a win-loss record of 39-81 and an ERA of 4.81. While his statistics may not have placed him among the elite pitchers of his era, Jefferson's ability to adapt to different roles and his perseverance in the face of challenges were noteworthy.
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