Yesterday, the Washington Nationals promoted infield prospect Wilmer Difo to the major leagues to fill the roster spot vacated by the injured Jayson Werth. As Dave Cameron pointed out yesterday, this move was something of a head-scratcher. Although Difo’s a fairly well-regarded prospect, he wasn’t exactly pushing for a call-up. He had all of 14 games above A-Ball to his name, and only 25 more above Low-A. Even stranger is that there isn’t a ton of playing time to be had in the Nationals infield. Ian Desmond, Danny Espinosa and Yunel Escobar seem to have shortstop, second base and third base covered until Anthony Rendon’s ready to return from injury.
Although he’s spent the entirety of his professional career in the low minors, Difo’s done nothing but hit the last couple of years. He spent all of 2014 in Low-A Hagerstown, where he hit a strong .315/.360/.470 with 49 steals. This year, he split time between High-A and Double-A, and hit an even better .315/.367/.520. Before you get too excited about those numbers, though, I’ll point out that Difo is already 23 years old. Most prospects worth their salt are at least a year or two removed from A-Ball by their 23rd birthdays. This isn’t to say that Difo is doomed as a prospect. Plenty of late-blooming prospects have gone on to have long and productive careers; but in the world of A-Ball prospects, you’d much rather a guy be 19 than 22 or 23.
Although he didn’t reach full-season ball until last year, Difo’s been around for a while. The Nationals signed him as an 18-year-old out of the Dominican back in 2010. However, despite strong offensive showings, they moved him very slowly through the system. The Nats kept him in the Dominican Summer League until July of his age-19 season, and didn’t move him out of American Rookie-ball until he was 21. This set him up to play his first full year in full-season ball last year at age-22.
Difo’s loudest tool is his speed, which grades out as a 70 according to Kiley McDaniel, and enabled him to steal 57 bases in 68 attempts between this year and last. There’s more to Difo than just his speed, however. He also showed an intriguing combination of power and contact in his minor-league stay. Difo racked up 52 extra-base hits last year, including 14 homers. This year, he logged 19 extra-base knocks in 33 minor-league games before his call up. Difo complemented this modest power by striking out a mere 12% of the time. Through this blend of contact and power, Difo put up a 139 wRC+ in spite of his 6% walk rate.
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