September call-ups loom as fantasy rosters inch toward playoffs, offering a slate of potential difference-makers who can swing weekly outcomes. In the spotlight: Jordan Lawlar, Jacob Wilson and Jasson Domínguez, each positioned to contribute early with big minors pedigree and the right developmental timing. The window is tight; owners should pounce on hot starts, especially when streaming for short-term boosts in runs, RBIs and power.

Lawlar, 23rd overall prospect, has a 319/.319 line across 229 minor at-bats with 50 runs, 21 doubles, 5 triples, 10 homers and 46 RBIs plus 19 steals. Wilson ranks at .312 with 46 runs, 17 doubles, 10 homers and 78 RBIs across 369 at-bats, offering multi-position value. Domínguez, the high-profile call-up archetype, has shown the ability to swing a season—his early impact is a reminder to chase up-front bets rather than late waiver adds.

Other immediate-need names show upside too: Chase Burns could carve a relief-to-spot-start path for Cincinnati, Kyle Bradish might return with a sharp boost for Baltimore, and Mick Abel offers fantasy-friendly peripherals if Philadelphia leans on him down the stretch. The strategy: stash the high-upside rookies, stream when matchups align, and ride the breakout weeks without overpaying for expected stumbles.