Harrison, who turned 25 in August, became a pro when the Brewers chose him in the second round of the 2014 draft. He eventually turned into a top 100 prospect, ranking as Baseball America’s 75th-best farmhand in 2018, though the Brewers traded Harrison to the Marlins in January of that year in part of a deal that delivered outfielder Christian Yelich to Milwaukee. Yelich has since made two All-Star appearances and won an MVP, while the Marlins haven’t gotten much major league value from Harrison or any of the other players they received in the deal.
In fairness to Harrison, this is just his first season at baseball’s top level, so it’s far too soon to determine whether he’ll evolve into a capable major leaguer. He hasn’t produced across his first 47 plate appearances this season, though, having batted .140/.213/.233 with one home run and 24 strikeouts.