Jonatan Clase

20-Year-Old OutfielderOF
Seattle Mariners A+
2023 Fantasy Outlook
There was no outlook written for Jonatan Clase in 2023. Check out the latest news below for more on his current fantasy value.
Protected from Rule 5 draft
OFSeattle Mariners  A+
November 15, 2022
Clase was added to Seattle's 40-man roster Tuesday.
The Mariners needed to add Clase to the 40-man roster or risk losing him in the Rule 5 draft. However, he is just 20 years old and has not played above Single-A, so there is a lot of development remaining. Clase, one of the fastest position players in the minors, hit .267/.373/.463 with 13 home runs and 55 steals in 499 plate appearances this past season.
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2021 Fantasy Outlook
Clase had an impressive pro debut as a 17-year-old in the Dominican Summer League in 2019, hitting .300/.434/.444 (147 wRC+) with two home runs and 31 steals (on 41 attempts) in 63 games. He was dealing with an undisclosed injury during most of the fall instructional league in 2020, but the Mariners say he was able to hit and that his hit tool and power appear to be real. That power is a new and important development. Clase, who was listed at 5-foot-8, 150 pounds when he signed in 2018, was listed at 6-foot, 200 pounds at instructs. He is the fastest player in Seattle's farm system (at least a plus runner), and now it seems that Clase is has a chance to be a five-category fantasy contributor. Since we're still awaiting his official stateside debut, it's hard to say exactly where his offensive skills are now, but he has the physical tools to jump 100 spots on the prospect rankings this season.