As the 2025 MLB season heats up, fantasy baseball managers should keep an eye on top prospects Nick Kurtz, Andrew Painter, and Coby Mayo. Kurtz, now with the Oakland Athletics, has showcased impressive power in the minors, hitting .321 with seven home runs in just 20 games at AAA. Meanwhile, Painter, returning from Tommy John surgery, has shown glimpses of his elite potential with a 2.45 ERA in Single-A. Lastly, Mayo is producing well at AAA, with a .256 average and four home runs, making him a potential boost for the struggling Orioles lineup. These players could become valuable assets in fantasy leagues, especially as they adjust to the majors and aim to solidify their roles.