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Jonatan Clase is a fantasy baseball OF prospect sleeper and minor leaguer to know. Read our MLB prospects outlooks for fantasy baseball rookies and call-ups.
PROSPECT: Jonatan Clase, OF, Seattle Mariners
ANALYSIS: The Mariners signed Jonatan Clase out of the Dominican Republic in 2018. The diminutive switch-hitting outfielder (5'9", 150 pounds listed) had a strong debut in the DSL in 2019, slashing .300/.434/.444 with 31 steals.
After the pandemic season, Clase struggled to make the same consistent contact, posting a .245/.333/.388 line. He did put up a .267/.373/.463 line in 2022 in the Cal League with 13 home runs and 55 stolen bases, but he also struck out at a 27% rate.
Clase had an incredible start to the season in High-A, posting a .333/.453/.701 line in 21 games before being promoted to Double-A. He's struggled at the level, with a .222/.337/.429 line and striking out at a 30%+ rate. That said, his overall line is still 16 home runs and 47 steals in just 74 games, which is an incredible line.
VERDICT: Clase makes the most of his athletic tools, but he's still quite raw as a player, as the strikeouts show. He's moved into must-own territory in deep dynasty simply because of his power/speed combination. But how soon he'll work up to the majors remains to be seen. If the strikeout rate remains high, he could struggle at the advanced levels.
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