Earlier this year FanGraphs failed to rank Deivy Grullon among the Top 39 prospects in a weak Philadelphia farm system:
https://blogs.fangraphs.com/top-39-prospects-philadelphia-phillies/
Grullon and Seattle's Luis Torrens were among potential backup catchers dealt at this year's trade deadline. Here is one comp with ZiPS projections:
DG DOB 2-27-96, 6-1, 180, B:R, T:R, international free agent signed on July 2, 2012, ZiPS 2021 0.3 WAR, 2022 0.6 WAR
LT DOB 5-2-96, 6-0, 175, B:R, T:R, international free agent signed on July 2, 2012, ZiPS 2021 0.8 WAR, 2022 0.7 WAR
Grullon made one start after the trade while Torrens made 16 starts for Seattle. Offseason moves could change depth charts but at this point Torrens would back up Tom Murphy, Seattle's expected starting catcher.
Grullon has six years of team control while Torrens has five years of team control.