Balanced stance with mild load and small stride, torso quick hands, above-average bat speed, mild leverage; aggressive approach especially against fastballs, will expand the zone, gets off balanced on off speed.
Plus raw power to all fields, ball flies off bat, strong with quick hands; tool plays down a notch at present due to aggressive approach; can max out with improved approach.
Average 4.37 home to first on three clocks, heavy feet, not quick.
Below-average reads and routes in the outfield, slow first step; splits time between corner outfield positions.
Average arm strength for RF, good carry and accuracy; would play above-average for LF.
Signed out of Cuba last summer with a reported $7 million dollar bonus, Ona's future value is tied to his bat. Compact and powerful, his swing has the potential to carry him to a ceiling of an everyday major league outfielder. However he needs to continue to improve his approach and command of the strike zone to reach that level. His speed and defense are below average and limit his utility to a corner outfield spot.