The stretch run is the best time in fantasy baseball to find cheap rate-of-return upgrades.  While teams don’t expand rosters like they once did, there is still plenty of opportunity with August 15th being a key date for minor league call-ups. Players called up after this time should retain rookie eligibility going into 2026 and provide an opportunity to gain draft picks for their teams with strong finishes in the Rookie of the Year voting.  While teams might be looking to jump start their hot shot prospects, these same players might just be fantasy gold for the last month-plus. This week, our hitter profiles will dig into a 4-pack of hitters that are likely to get the call in short order. I pulled scouting notes, reviewed draft pedigree, and minor-league production so you can make roster moves with receipts, not guesses.