As a senior at Lee's Summit West High in 2013-14, Harrison accounted for 29 touchdowns on a Missouri Class 5 state champion football team and averaged 16.4 points per game on a basketball squad that finished third in the state. He turned down a scholarship to play wide receiver at Nebraska to sign with the Brewers for $1.8 million as a second-round choice in 2014, then came to the Marlins as part of the Christian Yelich trade in January 2018. He led the Minors with 215 strikeouts in his first season with his new organization, then showed some progress in 2019 before fracturing his right wrist in June.
Few players can match Harrison's all-around tools, though he'll have to prove he can make consistent contact in order to reach his lofty ceiling. He did tone down his leg kick and do a better job of using the whole field in 2019, reducing his strikeout rate to 29 percent from 37 percent the year before. The bat speed in his right-handed swing and the strength in his 220-pound frame create well above-average raw power and exit velocities, though his career 1.6 groundout/airout ratio (2.1 last year) reduces his effectiveness at driving balls over the fence.
Harrison has plus speed and knows how to use it, stealing bases at an 84 percent success rate in his first six pro seasons and projecting as a 30-30 threat if he can continue to make adjustments at the plate. His quickness makes him at least a solid defender in center field, where he has spent most of his pro career, and an easy plus on the corners. His plus-plus arm strength ranks among the best in baseball for his position.
Scouting grades: Hit: 40 | Power: 55 | Run: 60 | Arm: 70 | Field: 55 | Overall: 55
A three-sport standout in high school, Harrison opted to play baseball over accepting a football scholarship from the University of Nebraska. The Brewers made him their second-round pick in 2014, swaying him with a well-over-slot $1.8 mllion bonus. After ankle and hamate injuries sidetracked his first two full pro seasons, Harrison broke out with 21 homers and 27 steals in 2017, then got traded to the Marlins along with Lewis Brinson, second baseman Isan Diaz and right-hander Jordan Yamamoto for Christian Yelich during the offseason.
In terms of pure athleticism and brute strength, Harrison has tremendous upside. A career .242 hitter who led the Minors with 215 strikeouts in 2018, he must demonstrate he can make consistent contact to reach his true potential. Even when he struggled in his first season in the Miami system, his upside was evident with 19 homers and 28 steals. According to Marlins metrics, 20 percent of the balls he put in play in Double-A had exit speeds of more than 105 mph, nearly three times the MLB average of 7 percent. Defensively, he has the quickness for center field and a cannon for an arm that easily would fit in right.
Harrison made some adjustments in the Arizona Fall League, reducing his leg kick and producing more regular contact. He continued to show improvements in 2019, though he fractured his right wrist making a diving catch in June and subsequent surgery was expected to sideline him for most or all of the rest of the season. If he stays healthy and keeps refining his swing, he could develop into a 30-30 player.
Scouting grades: Hit: 45 | Power: 55 | Run: 60 | Arm: 70 | Field: 55 | Overall: 50
Revered as one of the 2014 Draft's premier athletes, Harrison was set to pursue a career in both baseball and football at Nebraska before the Brewers offered him nearly $700,000 over slot value as their second-round pick. Although a grim ankle injury prematurely ended his first full season and a broken hamate limited him the following year, a fully healthy Harrison blossomed in 2017, earning Midwest League All-Star honors before advancing to the Carolina League. He finished the season with 21 home runs and 27 stolen bases over 122 games between the two levels, and then firmly put himself on the Major League radar with a standout campaign in the Arizona Fall League. Harrison's breakout caught the attention of the Marlins, and they acquired him with Lewis Brinson, Isan Diaz and Jordan Yamamoto for Christian Yelich in January.
Harrison might have the loudest tools in Miami's system. He generates plus raw power to all fields thanks to a combination of physical strength and plus bat speed that enables him to turn around velocity. That power does come with some strikeout concerns, as Harrison's swing will get too long at times and he'll struggle to recognize spin, causing him to expand his zone. Harrison's plus speed makes him a basestealing threat as well as an above-average defender, either in center field or in right, where his cannon for an arm is a clean fit.
Harrison offered a taste of his potential during his breakout 2017 campaign, and the Marlins are justifiably excited about what the future may hold for their new outfielder. If he can stay healthy, Harrison could develop into a perennial 20/20 player who also offers considerable value with his defense.
Scouting grades: Hit: 45 | Power: 50 | Run: 60 | Arm: 70 | Field: 55 | Overall: 50
One of the premier athletes in the 2014 Draft class, Harrison passed on an opportunity to play two sports at Nebraska to sign for nearly $700,000 over slot value as the Brewers' second-round pick. Injuries impacted his progress early in his career, as a grisly ankle injury in July prematurely ended Harrison's first full season, and a broken hamate limited him to just 75 games at Class A Wisconsin in 2016. When Harrison was healthy in 2017, his on-field results finally reflected his immense physical tools, as he was named a Midwest League All-Star before advancing to the Carolina League. He finished the season with 21 home runs and 27 stolen bases, and then continued to make strides during an impressive turn in the Arizona Fall League. Harrison's breakout caught the attention of the Marlins, who acquired him, Lewis Brinson, Isan Diaz and Jordan Yamamoto for Christian Yelich in January.
Harrison has excellent bat speed and should develop at least average power as he matures and gains much-needed experience. His penchant for whiffing stems from a long swing and pitch-recognition issues, though his overall approach is solid. Harrison's plus speed makes him a basestealing threat as well as an above-average defender, either in center field or in right, where his cannon for an arm is a clean fit.
Harrison offered a glimpse of his potential during his healthy 2017 campaign, and that production should continue to translate as he gains experience. The final product could be that of an All-Star-caliber outfielder who also offers considerable value with his defense.
The Brewers targeted high-ceiling players in the 2014 Draft, and Harrison might have been the best athlete in the class. He turned down a chance to play two sports at Nebraska and signed for nearly $700,000 over slot value, and then led the Rookie-level Arizona League in stolen bases in his pro debut. He struggled in his introduction to full-season ball in 2015, hitting just .148 with a disconcerting strikeout rate, but he managed to right the ship once he moved down to the Pioneer League, only to have his season come to an end with a grisly ankle injury in July. Injuries continued to plague Harrison in 2016, when he landed on the disabled list with a broken hamate in late June just as he was heating up at the plate.
Harrison's plus speed makes him a basestealing threat as well as an above-average defender, either in center field or in right, where his cannon for an arm is a clean fit. Harrison has excellent bat speed and should develop at least average power as he matures and adjusts to the pro game. He does have some length to his swing, which leads to quite a bit of swing-and-miss, but it's nothing that can't be fixed. Harrison finished fifth in the Arizona League in on-base percentage in his pro debut, though his approach was challenged with the jump to the Midwest League last year.
If Harrison can stay healthy and everything goes as hoped with his development in the coming years, he could develop into a perennial 20/20 player who also offers considerable value with his defense.
Scouting grades: Hit: 50 | Power: 50 | Run: 60 | Arm: 70 | Field: 55 | Overall: 50
The Brewers aggressively went after high-ceilinged players in the 2014 Draft, and Harrison might have been the best athlete in the class. Turning down a chance to play two sports at Nebraska, Harrison signed for nearly $700,000 over slot value and promptly led the rookie-level Arizona League in stolen bases.
He's far from a one-trick pony, however. While Harrison's speed will continue to allow him to be a basestealing threat, it also will help make him an above-average defender, either in center field or in right, where his plus arm profiles very well. Harrison showed excellent bat speed in his debut, as well as a more advanced approach at the plate -- he finished fifth in the AZL in on-base percentage -- than you'd expect from a multi-sport high schooler. There's more power to come as well as he matures and adjusts to the pro game.
After initially showing a better overall feel for the game than anticipated, Harrison stumbled in full-season ball in 2015. He righted the ship once he moved down to the Pioneer League, only to have his season come to an end in July with a broken ankle.