Chase Meidroth is making the Boston Red Sox look like they may have given away more than they expected in the Garrett Crochet deal. The 23-year-old infielder, once a secondary name in the trade, has become a productive regular for the Chicago White Sox and is doing it with enough consistency to make the early returns impossible to ignore.

That is why his name is drawing attention now. Meidroth is hitting.269 with a.732 OPS in 78 games this season, up from.253 with a.659 OPS in his debut season last year. He has already matched last season’s home run total with five and has climbed to fifth on the White Sox in RBIs, a notable jump for a player the Red Sox ranked No. 19 in their system when they traded him away.

The trade that sent Meidroth to Chicago also sent Kyle Teel, Braden Montgomery and Wikelman Gonzalez to the White Sox before last season in the deal for Crochet. Teel was the headliner in that package, but Meidroth has become the most immediate major league success story from the group. He has a fielding run value of plus-three and an outs above average of plus-one this season, numbers that suggest the improvement is not limited to the batter’s box.

Meidroth’s rise is especially awkward for Boston because the comparison that once tilted the other way has not held. Marcelo Mayer was the Red Sox’s No. 1 prospect and the No. 15 prospect in all of baseball at the time of the trade, and he was widely projected to become the better big leaguer. Instead, Meidroth has played in 82 more games as a major leaguer and has 22 more hits this season despite appearing in four more games. He also owns the better batting average, on-base percentage and OPS, even if Mayer has three stolen bases to Meidroth’s two.

That does not make the deal settled. Mayer still has the higher prospect pedigree, and Meidroth’s bat is still young enough that a full season will decide how real this breakout is. But for now the White Sox are in postseason position, and Boston is left watching one of the players it traded away help Chicago while the Red Sox are still trying to get on a roll.