Week 4 of the 2025 fantasy baseball season has seen some prominent players struggle, raising questions about their future on fantasy rosters. Brandon Lowe, despite a decent start, has seen his performance dwindle to a .233 average, prompting speculation for potential drops. Jordan Westburg's early-season promise has fizzled, making a strong case for holding, given his prior All-Star caliber. Riley Greene, having fallen short of expectations, is a sell candidate as his metrics drop significantly. Alec Bohm's recent consistency offers hope for a revival, suggesting that holding onto him could pay off. Lastly, Gavin Williams has disappointed, making him a prime drop in most leagues.

Devin Williams, the New York Yankees' newly acquired closer, has struggled in his first few weeks, allowing runs in four of his nine appearances and posting a 9.00 ERA. In a recent game against the Tampa Bay Rays, he surrendered a four-run lead in the ninth inning, culminating in a 10-8 loss for the Yankees, ending their five-game winning streak. Despite having four saves, Williams has walked seven batters and opponents are hitting .333 against him.

Yankees manager Aaron Boone expressed confidence in Williams, highlighting that the right-hander possesses the necessary skill to overcome this early setback. In contrast, Luke Weaver, who has yet to allow a run in 11 innings this season, is emerging as a potential closer option if Williams doesn't improve. Williams’ previous success with the Milwaukee Brewers raises questions about his current performance and whether he can reclaim his form.

Jonathan Aranda's dramatic two-run walk-off homer in the 10th inning propelled the Tampa Bay Rays to a thrilling 10-8 victory over the New York Yankees, ending a four-game losing streak. The Rays showed resilience, coming back from a daunting 6-1 deficit in the fourth and an 8-4 gap entering the ninth. A late rally saw them score four runs, highlighted by Brandon Lowe’s crucial two-run single that tied the game. Shane Baz, who struggled, was replaced after allowing five runs, but the team’s offensive burst, featuring contributions from Jose Caballero and Yandy Diaz, turned the tide.

In a remarkable twist, rookie Chandler Simpson made his major-league debut, batting leadoff for the Rays, bringing excitement and speed to the lineup. Manager Kevin Cash expressed optimism about Simpson's potential impact, especially given his impressive minor-league stats, including a powerful combination of speed and contact hitting. Meanwhile, the team faces a setback with Richie Palacios expected to miss 4-6 weeks due to a knee injury. The Rays aim to build on this momentum as they prepare for their next matchup against the Yankees.

On April 11, 2025, Aaron Judge is poised for a strong home run outing against the San Francisco Giants, having homered in four of six career games against them. He faces Robbie Ray, a fly-ball pitcher, making this matchup enticing. Pete Alonso also looks promising, especially with his ability to barrel up balls at an exceptional rate in the hitter-friendly Sacramento ballpark. Brandon Lowe's power potential shines in Tampa's new environment, and Christian Encarnacion-Strand is predicted to have a breakout game against Bailey Falter of the Pirates. Triston Casas, although struggling, has a chance to capitalize on a favorable matchup against Davis Martin of the White Sox.

The early weeks of the 2025 MLB fantasy baseball season are crucial for managers seeking to capitalize on the waiver wire. Notable names to consider adding this week include Kris Bubic, who has shown potential as a reliable reliever, and Tommy Kahnle, who may be a key asset in the bullpen. Dennis Santana and Anthony Bender also stand out for their ability to contribute to pitching depth. Additionally, Victor Scott II is emerging as a noteworthy outfield option, especially with recent performance trends favoring his prospects.

As the season kicks off, fantasy managers must remain vigilant about injury updates and player performance to make informed decisions on their roster. For instance, the struggles of Thomas Harrington in his MLB debut might open up opportunities for pitchers like Bubic and Kahnle, who can help fill any gaps in starting or relief roles. Keeping an eye on standout players like Brandon Lowe, who is off to a hot start, is vital for maintaining a competitive edge throughout the season.