Isaiah Lyn Campbell (born August 15, 1997) is an American professional baseball pitcher in the Boston Red Sox organization.
[3] His sophomore season in 2017 was cut short after just +2⁄3 of an inning due to an elbow injury, for which he was granted a medical redshirt.
That season, he appeared in 18 games, making 17 starts, including four in the NCAA tournament and two in the College World Series.
[6] Campbell made his professional debut in 2021 with the Everett AquaSox of High-A West, pitching 19+1⁄3 innings and going 3–1 with a 2.33 ERA.
[8] He began the 2022 season as a starting pitcher, but continued to experience elbow discomfort after his first four games, and he was placed on the injured list again.
This made Campbell only the second Portuguese-born player to appear in the major leagues, and the first since Frank Thompson, who played twelve games in 1875.
[16] On November 17, 2023, Campbell was traded to the Boston Red Sox in exchange for infielder Luis Urías.
While on optional assignment with the Triple–A Worcester Red Sox, Campbell was placed on the injured list with right elbow inflammation on July 23, 2024.