Theo Gillen

19-Year-Old OutfielderOF
Tampa Bay Rays A
2025 Fantasy Outlook
A prep infielder from Texas whom the Rays selected in the first round last year, Gillen needed shoulder surgery as a sophomore and dealt with a knee injury as a junior, but he always had a great hit tool, and he started to hit for power as a senior. The 6-foot-2 lefty hitter is a plus runner whose speed has been trending up, and he projects for at least above-average power. It's a weak crop of prep hitting prospects, and Gillen might be the safest bet to hit, although his defense is more of a question. His below-average arm is a liability at any position, and the Rays deployed him exclusively in center field during his brief pro debut after signing for $4.37 million. The lefty-hitting Gillen can expect to sit against most lefties when he initially gets to Tampa Bay in a few years, but it's possible he hits enough to eventually shed a platoon. Read Past Outlooks
RANKS
From Preseason
$Signed a contract with the Rays in July of 2024.
Drafted by Rays
OFTampa Bay Rays  A
July 14, 2024
The Rays have selected Gillen with the 18th overall pick in the 2024 First-Year Player Draft.
ANALYSIS
A prep infielder from Texas, Gillen needed shoulder surgery as a sophomore and dealt with a knee injury as a junior, but he has always had a great hit tool, and he started to hit for power as a senior. The 6-foot-2 lefty hitter is a plus runner whose speed has been trending up, and he projects for at least above-average power. It's a weak crop of prep hitting prospects, and Gillen might be the safest bet to hit, although his defense is more of a question. His below-average arm is a liability at any position, let alone shortstop, so the hope is that he can make it work in left field.
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