Report: Aidan Miller to Play Shortstop on Saturday for Low-A Clearwater

Phillies #2 prospect Aidan Miller will play five innings at shortstop for the Clearwater Threshers on Saturday night, according to Matt Gelb of The Athletic.

Miller, 22, has not played in a game since September of 2025 after dealing with a back injury since the starting of spring training. The Phillies did not have many updates on Miller early-on in the injury, although it was later labeled as discogenic pain and facet inflammation in the lumbar spine.

The infield prospect had a great year in 2025 across AA and AAA, hitting .264 with 111 hits and an .825 OPS across 432 ABs. This past winner, the Phillies had plans of potentially seeing Miller in the majors in the summer of 2026, due to the unknown plans with Alec Bohm before the season was underway. Ultimately, that ended up not happening due to the injury.

The Threshers only have six games remaining on their schedule, and I’d assume that Miller won’t play in every one. It’s not a lot of baseball, but it’s baseball, and that’s what the Phillies want to see from their top position prospect.

The expectation, according to Gelb, is that Miller will play in the Arizona Fall League, which begins on October 3rd.

Luke Arcaini has been writing about the Phillies for 6 seasons, and is now in his 2nd year covering for Phillies down at Citizens Bank Park for Crossing Broad. Follow him on Twitter @ArcainiLuke