Why we like him
The most decisive thing here is availability: Hall was reinstated from the injured list on July 31 and should immediately resume a lefty middle-relief role for Milwaukee, which gives him a clear upside given his 2.03 ERA and 32 strikeouts in 31 innings this season. He showed enough on rehab to be trusted into game action, punching out nine batters in 5 2/3 innings across four minor-league appearances and even striking out the side in a 13-pitch inning, which argues his stuff is back; Statcast also shows above-average chase and whiff rates that support a strikeout ceiling, but note he has 0 appearances in the last 15 game weeks so there is some short-term rust and workload uncertainty to price in. Sorare pegs him at 26.4 points with medium model confidence, so treat Hall as a high-upside play if you expect the Brewers to use him in leverage against lefties or multi-inning relief, while accepting a lower floor if he comes back in a cautious, low-leverage pattern.