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.

As we approach the Super-2 threshold on May 9, 2025, fantasy managers need to keep an eye on key MLB prospects who could make an impact this season. Agustin Ramirez has been called up by the Miami Marlins, bringing power and speed potential that could redefine the catching position in fantasy leagues. With 25 home runs and 22 steals last year in Double-A, he provides a unique blend of skills. In addition, Jordan Lawlar of the Arizona Diamondbacks is on fire in Triple-A, boasting a .410 batting average and multi-positional versatility, making him a must-add in deeper formats.

On the pitching end, Bubba Chandler has been dominant in Triple-A, potentially the best pitching prospect poised for a call-up. However, Matt Shaw's early struggles with the Chicago Cubs might have fantasy managers reconsidering their holds on him. Overall, stashing these prospects could pay dividends as the season progresses, especially with several promotions expected before the Super-2 deadline.

Rowdy Tellez and Randy Arozarena played pivotal roles in the Seattle Mariners' thrilling 8-4 victory over the Toronto Blue Jays, clinching the win in 12 innings. Arozarena's bases-loaded single set the stage for Tellez's two-out grand slam, showcasing the Mariners' power at crucial moments. The Mariners managed to equal the series, stopping Toronto's three-game win streak, with notable performances from Andres Munoz, who secured the win with a shutout inning.

Toronto's pitching saw Jose Berrios struggle despite a solid outing, while Seattle's Logan Gilbert faced challenges early on. The game dynamics shifted with significant hits from players like Bo Bichette and newcomer Andres Gimenez, who showcased their hitting prowess throughout the match. As the teams prepare for the series finale, the Mariners aim to build on this momentum, while the Blue Jays seek to rebound and regain their winning form.

The Chicago White Sox faced a tough start to their season-long 10-game road trip, suffering a 10-3 loss to the Boston Red Sox. Pitcher Martín Pérez struggled early, allowing a three-run homer from Trevor Story in the first inning before exiting the game with forearm discomfort after just three innings. Pérez's performance was further marred by fatigue and difficulty with command, leading to four runs on five hits. This loss marked the White Sox's fifth straight defeat and continued a troubling trend of poor performance, with the team now slipping to 4-15 overall.

Despite the setback for Pérez, who initially had a promising start to the season with a 3.15 ERA, manager Will Venable expressed confidence in his leadership abilities and the importance of his experience within the team. The White Sox bullpen, already stretched thin, was forced to pitch the remaining six innings. The Red Sox showcased their power with multiple homers, including another three-run blast from Story in the seventh inning, sealing the game against a beleaguered White Sox squad that has struggled immensely on the road.

For fantasy baseball enthusiasts looking to bolster their pitching staff, several intriguing streaming options are available for the upcoming week. Jeffrey Springs of the Athletics is set to face the White Sox and Brewers, showing promise with his increasing velocity. Grant Holmes, also rostered at 73%, faces favorable matchups against the Blue Jays and Twins, despite previous efficiency issues. Chaos characterizes Mitch Keller's outings with the Pirates, yet his potential for high strikeouts can be enticing with two starts against the Nationals and Guardians. Keep an eye on Tylor Megill of the Mets; he’s been solid this season, albeit with uncertainty about a second start.

Tomoyuki Sugano has shown efficiency for the Orioles and could benefit from a weak Guardians batting lineup. JP Sears of the Athletics, currently at 27% rostered, is worth a flier, especially against the struggling White Sox. Landen Roupp has swing-and-miss potential and would be a good addition in points leagues. Finally, Richard Fitts boasts quality starts and might emerge as a sleeper against the White Sox. As we enter this scoring period, these pitchers present a variety of opportunities for fantasy managers.