As the 2025 MLB season unfolds, several rookie prospects have made an impact after being called up. Chandler Simpson, an outfielder for the Tampa Bay Rays, has shown promise with his speed, recording two stolen bases in just 15 plate appearances. Nick Kurtz from the Athletics debuted strongly, hitting a home run and showcasing excellent plate discipline that could translate well in fantasy leagues. Luke Keaschall, a versatile infielder for the Twins, has already stolen five bases, indicating significant speed potential. Miami's Agustin Ramirez adds intrigue as a catcher with unexpected speed, while Caleb Durbin of the Brewers shows promise in batting average and stolen bases. Notably, Roman Anthony (Red Sox) and Bubba Chandler (Pirates) are prospects to keep an eye on for future call-ups.