The Potential Tools: 60 hit, 60 arm, 55 glove, 50 power, 50 run

Strengths: Lean, wiry, projectable frame; strong for size; plus bat speed; smooth, easy stroke from left side; pure feel for hitting and will use all fields; can handle velocity on inner half; advanced approach and plan; above average hand-eye coordination; above average raw power; in-game power is presently doubles oriented; potential for HR power with added strength; has ability to lift the ball pull side presently; above average run times; long, graceful strides; reads pitchers extremely well; will be a stolen base threat; above average reads and reactions in center field; plus range to the gaps; arm is easy plus; throws have carry and accuracy and will be a weapon in center field.

Weaknesses: Speed will slow with added strength; long limbs can make swing long at times; collapsing backside to maximize power can cause added swing and miss in zone, and limit barrel control; HR power may never materialize; defense may be best suited for right field; can swing and miss vs. breaking stuff in zone; will expand up in the zone at times; injury history on resume.

Role Ceiling: 60; first-division center field/potential all-star.

Risk: Moderate; Home run power developing; needs to stick in center field to reach all-star ceiling.

Summary: Hiding under the radar his first few years at San Francisco, Zimmer emerged as one of the better college bats in the entire 2014 MLB draft. He does not possess run, but Zimmer arguably reads pitchers better than anyone in the minor leagues, and he’ll be a stolen base threat when he reaches the major leagues. His quick hands, bat speed and hand-eye coordination are key factors for his projected plus hit tool, and with some overall strength added to his wiry, long frame, he could hit for average power. In center field, Zimmer gets solid reads and reactions off the bat, and his speed allows him to have plus range to both gaps, allowing him to stay there for the foreseeable future. When looking at the overall package Zimmer brings, there’s five-tool potential there, including above-average defensive value, a plus hit tool and potentially average power.