The final stretch of the MLB season is upon us, and several players are crucial to monitor as managers prepare for the playoffs. Notably, Lawrence Butler, once a breakout candidate, has struggled significantly, posting troubling numbers and losing playing time. In contrast, Jackson Merrill, despite a similar PPG average, has shown more consistent contact and could be a value next season. Additionally, Jung Hoo Lee's promising skills growth is worth tracking. On the younger side, Dylan Crews is returning from injury with potential, while Coby Mayo is finally getting a chance after performing well in the minors.

As the fantasy baseball season enters the home stretch, Week 19 (August 4-10, 2025) brings a fresh look at waiver wire pitchers who can bolster your team. Focus on players rostered in under 50% of Yahoo! leagues, with deeper options available for those in larger leagues. Whether you're looking for quality starts or strikeout potential, this week's list provides valuable insights.

Brady Singer of the Cincinnati Reds is a notable addition, having recently showcased impressive performances, including a 10-strikeout game against the Atlanta Braves. Jack Leiter (Texas Rangers) continues to improve with three wins and a solid ERA. Yu Darvish (San Diego Padres) is back in form after a strong outing versus the New York Mets, while Patrick Corbin (Texas Rangers) has been consistent with a favorable WHIP. Cade Horton (Chicago Cubs) enters the conversation, having posted three consecutive scoreless outings.

In deeper leagues, consider Jose Quintana (Milwaukee Brewers) for reliable innings and emerging talent like Zebby Matthews (Minnesota Twins), who could see an uptick in opportunities following team trades. Luis Severino (Athletics) has rediscovered his groove post-All-Star break, while Cam Schlittler of the New York Yankees is gaining traction as a potential rotation fixture after recent performances.

This week’s analysis of trending starting pitchers features three intriguing rookies making their mark in the MLB. Troy Melton of the Detroit Tigers showed resilience after a rough debut, delivering seven shutout innings against the Diamondbacks. His six-pitch arsenal, especially his 97 mph fastball and effective slider, showcases his potential as a valuable asset in fantasy leagues. Meanwhile, Carson Whisenhunt of the San Francisco Giants struggled in his debut, failing to impress with his command; his changeup remains a work in progress. Pierson Ohl of the Minnesota Twins faced challenges but demonstrated a strong changeup that could develop into a key pitch. As the trade deadline approaches, monitoring these pitchers could yield dividends for fantasy owners.

Rookie prospects are making waves in the minors, and JJ Wetherholt of the St. Louis Cardinals leads the pack with impressive stats and potential for fantasy impact. His recent performance indicates he could be a valuable addition to fantasy rosters in 2025. Meanwhile, Luke Keaschall is back from injury with the Minnesota Twins and showing promise. Jordan Lawlar of the Diamondbacks, despite an injury, has shown tremendous upside based on his minor league stats. Catcher Samuel Basallo of the Orioles is currently on fire, making him a must-watch. New York Yankees' Spencer Jones is showcasing elite power, while Bubba Chandler, the top pitching prospect from the Pirates, is another name to keep an eye on.

Amidst the discussions on these rising stars, Jesús Made is touted as the best overall fantasy prospect, driven by a combination of hitting, power, and speed. The Marlins’ Robby Snelling and Mariners’ Tyler Locklear are also highlighted as emerging talents in the league. Keep tabs on these prospects, as they could significantly impact fantasy lineups in the near future.

The Philadelphia Phillies are positioned strategically for impactful trades as the MLB trade deadline approaches. General Manager Dave Dombrowski has a history of bold moves, and this year is no different. With significant gaps in the big-league roster and a wealth of talent among their six top-100 prospects, the Phillies could make a splash. Notably, Andrew Painter, a former first-round pick, is considered untouchable, but other prospects like Aidan Miller, Justin Crawford, and Mick Abel could be on the move.

Aidan Miller's stock has dipped due to a challenging season, yet his potential remains intriguing. Justin Crawford has showcased strong performance at the Triple-A level, making him a valuable asset for teams in rebuilding phases. Meanwhile, Mick Abel has already tasted big-league action, presenting a dual opportunity for the Phillies to enhance their roster while providing young players a chance to shine elsewhere.