The Phillies used to have nothing at shortstop in the minors. Now they’ve got a real pileup, and the organization is going to have to sort out who stays at the position and who eventually gets nudged elsewhere.
At the center of it is Aidan Miller, the name that has been circling Phillies prospect conversations for a while now. He finally got back on the field in 2026 after more than five months on the injured list with discogenic pain and facet inflammation in the lumbar spine, then underwent minimally invasive surgery in June.
The recovery took longer than the six-to-eight-week timetable, but he returned to game action on Sept. 5, three months after the procedure. On his first at-bat back during a rehab assignment with Single-A Clearwater, he lined a double down the left-field line at 109.1 mph.
Since the Phillies drafted Miller in 2023, there’s been plenty of talk about moving him off shortstop and over to third base. That hasn’t happened.
The back issues could still force the issue down the road, but for now the Phillies are continuing to develop him at short, where he’s performed well at every level in the system. The most likely next step is the Arizona Fall League in October, a chance for him to make up for lost time.
If he hits there, he should head into spring camp next year with a shot at claiming a role somewhere on the infield. That could mean Turner in the outfield, or Turner at third base if Alec Bohm leaves, or Turner at second base if the club keeps Bryson Stott at third.
The other possibility is that Miller returns to Triple-A Lehigh Valley to keep building.
Bryan Rincon is right there too, and his rise has been one of the better stories in the system this year. The 14th-round pick in 2022 is breaking out at Double-A Reading, where he’s hitting .262/.406/.500 with 24 home runs and 29 stolen bases.
He’s the favorite to win the Phillies’ Paul Owens Award. Rincon grew up in Venezuela, moved to the Pittsburgh area, and played high school ball there before the Phillies drafted him for his defense.
Before 2026, only the hardest prospect hounds were paying close attention. That’s changed, and he’s going to show up on most top-100 lists to start 2027.
Even if the bat levels off, his glove should get him MLB playing time. If Miller stalls, Rincon could be on the doorstep of the majors after a strong spring.
That’s just the upper-minors crowd. The Phillies have three more shortstop prospects in the lower levels, starting with Juan Villavicencio.
He opened the season at Single-A and hit .298/.383/.540 before moving to High-A Jersey Shore in late July. The jump has been tougher offensively, but his plate discipline has held up, and his walk rate has climbed from 12.2% to 15.9%.
Villavicencio signed for a $90,000 bonus as a 17-year-old international signee, and this season has been the first real glimpse of his power, with 14 of his 22 career home runs coming in 2026. He brings a left-handed bat, defensive value, and a fairly high floor, though he’s still developing.
Then there’s Tyler Spangler, the Phillies’ 2026 first-rounder at No. 36, whose slide in the draft gave the team a shot at a player they were fortunate to land. He’s had a rough start to pro ball since debuting at Clearwater on Aug. 19, collecting only six hits so far.
Still, the upside is obvious. Evaluators have compared him to Corey Seager and Cal Ripken Jr., and they project him as an above-average player across all five tools.
He’s already 6-foot-3, so a future move to third base is a real possibility if he grows out of shortstop, but right now he has good hands and solid range. He also launched his first pro home run on Sept.
The youngest name in the group is Juan Parra, and he might be the most intriguing development success the Phillies had in 2026. The 17-year-old switch-hitter came out of Bobby Abreu’s academy in Carabobo, Venezuela, and signed for $550,000 last offseason.
In 54 games with the DOSL Rookie-Ball Phillies, he hit .295/.451/.437 and walked 11 more times than he struck out. Scouts think he’ll add strength to his small frame and eventually unlock more power, but even before that happens, he’s already the club’s No. 10 organizational prospect.
He profiles as slightly above average at shortstop, and he may fit even better at second base.
There’s more depth beyond those four, too, including Matthew Ferrera, who is one of the fastest players in minor league baseball. And with a lockout for the 2027 season looming, all of these players except perhaps Rincon should be able to keep developing in the minors next year, as long as they aren’t added to the 40-man roster.
Ideally, that won’t be a problem by April. If it is, more eyes than ever will be on this growing wave of Phillies shortstop talent.
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