The A’s are planning to recall infield prospect Jordan Diaz, as first reported by Daniel Álvarez-Montes of El ExtraBase (Twitter link). The 22-year-old infielder has spent the year on optional assignment to Triple-A Las Vegas.
Díaz debuted in the big leagues late last season. The Colombian-born infielder got into 15 games, hitting .265/.294/.327 through his first 51 plate appearances. He only struck out seven times but walked just twice and has yet to connect on an MLB homer. Díaz had posted excellent numbers between Double-A Midland and Las Vegas prior to his promotion, combining to hit .326/.366/.515 in 120 minor league games.
After 11 more contests in Triple-A, Oakland is bringing Díaz back up the majors. He’ll add a bat-first infielder to a mix that also includes Aledmys Díaz, Jace Peterson, Tony Kemp and Kevin Smith. The #12 prospect in the system according to Baseball America, Díaz will look to hit enough to offset questions about his ideal defensive home.
Díaz isn’t the most notable forthcoming prospect promotion for the A’s. Oakland announced earlier today they were promoting pitching prospect Mason Miller to make his big league debut. General manager David Forst subsequently informed the club’s beat that the A’s were planning to keep Miller in the rotation from here on out (relayed by Martín Gallegos of MLB.com). With the revelation it’s not simply a spot start for the 24-year-old, Oakland will have to either turn to a six-man starting staff or bump someone from the rotation.
None of Oakland’s starters has fared especially well thus far. JP Sears has the lowest ERA in the group at 4.60. Each of Shintaro Fujinami, Ken Waldichuk and James Kaprielian has allowed more than a run per inning. Opening Day starter Kyle Muller sports a 7.23 ERA with a modest 15.1% strikeout rate.
Everyone in the group still has minor league options remaining. That could lead to one of them being demoted to Las Vegas, but it’s also possible the club looks into a bullpen or swing role for a struggling starter. The A’s were dealt a hit to the relief corps this afternoon, as righty Dany Jiménez went on the 15-day injured list with a shoulder strain.
Jiménez operated as the club’s primary closer at points last season. He’s picked up the team’s only save thus far in 2023, though his overall results have been rough. The 29-year-old has walked six with only four strikeouts over 6 2/3 innings. He’s allowed four runs and seen sharp dips in his swinging strikes and velocity. It seems clear he has not been operating at full strength. The team hasn’t provided a return timetable, though a shoulder strain prematurely ended his 2022 campaign in late August.