Ideal size and frame, great build, not overly strong but solid and still with room to grow.
Daytona Tortugas (High A, Reds)
50, major league regular
Traditional left-handed stance; pure, smooth left-handed swing; almost perfect swing path with just a slight, natural left-handed uppercut; plus bat speed and a great feel for the barrel; can hit .300 at the major league level.
Could have average to above-average power due to bat speed; ball carries well to CF and LCF; generates good backspin; could be a 20-25 homer guy in the big leagues.
Average speed, decent acceleration; 4.19 Home to first base.
Good athlete with average speed, but gets good reads off the bat and tracks the baseball well; can handle center field for now but will need to move to a corner as he ages; presently has plus range for a right fielder.
Would be best suited for left field, but can handle center; would be slightly over-matched in RF but it wouldn't be a huge liability.
McKinney is going to hit no matter how the rest of his profile ends up, and his on-base skills are strong enough to make him a plus offensive player. Just how much better than league average will depend on his power. He continually puts himself in good hitting situations, which should allow his power to play up. He doesn't have huge raw power, but the ball carries off of his bat and he should be a 20-homer hitter.
It's a tougher profile if he ends up in left field, but even there, hitting close to .300 with 20 home runs and strong on-base skills will work. If he can remain in center field for a few years, it will play even better and makes him a potential all-star.
There is some risk with McKinney because he's not yet 20 years old, but there is no doubting the hit tool, which has held up to an aggressive challenge in his first full professional season. The hit tool will carry him to the majors with the rest of the tools determining his success.