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Looking At The Seattle Mariners Top Prospects Part 3

#11. Isaiah Campbell, right-handed pitcher selected as a competitive balance pick in 2019. This coming season will be his first in the major leagues as the Mariners kept him out of action though he was supposed to have pitched for Everett.

His fastball averages low to mid-90s though he can reach 98 miles per hour. Scouts figure he could become the third starter. Right now, they will use him as a starter in the minor leagues. His two primary off-speed pitches are the splitter and curveball.

#12. Sam Carlson: right-handed pitcher drafted in the second round out of high school in 2017.