As we hit the All-Star break, fantasy baseball managers need to keep a keen eye on the waiver wire, particularly for emerging starting pitchers who are currently undervalued. This week, four names stand out based on their recent performances and potential for sustained success.

Trevor Rogers of the Baltimore Orioles, once a highly regarded prospect, has bounced back from a rocky start to post a 1.86 ERA over his last 29 innings. His pitch mix, particularly his changeup, is showing promise, making him a solid pick for those in need of a reliable starter.

Meanwhile, Sean Manaea with the New York Mets is back from injury and displayed dominance in his first outing, reminiscent of his second-half performance last season where he posted a 3.48 ERA. His changeup improvement could lead to even better results.

Rookie Cam Schlittler from the Yankees made a strong debut with seven strikeouts in a bulk relief role, showcasing his potential as a future rotation piece. Lastly, Joey Cantillo of the Cleveland Guardians has the strikeout ability to contribute in favorable matchups despite some WHIP concerns.

The New York Mets received a significant boost as they activated two key pitchers, Kodai Senga and Sean Manaea, from the injured list for their series against the Kansas City Royals. Senga, who had missed time due to a hamstring strain, has been a reliable ace with a stellar ERA and a winning record when on the mound. Manager Carlos Mendoza acknowledged the importance of having both pitchers back as the Mets aim to finish the season strong. The return of Manaea, who faced elbow issues, is equally anticipated, given his impactful role in the previous season.

In the absence of these pitchers, the Mets struggled, particularly in a recent series against the Baltimore Orioles, where they lost both games with bulk relievers filling in. With the All-Star break approaching, the Mets hope to regain their footing in the NL East race, currently trailing the Philadelphia Phillies. The management is cautious with Senga's pitch count but remains optimistic about both pitchers' contributions.

The New York Mets are facing a pitching dilemma as their early-season success fades. Once boasting a strong rotation, injuries have left the back half struggling, prompting speculation on potential trades. With the return of Kodai Senga and Sean Manaea, the Mets need one more reliable starter to solidify their playoff ambitions. Analysts suggest Merrill Kelly of the Arizona Diamondbacks could be the answer, given his impressive stats and postseason experience.

Bringing Kelly aboard would not only enhance the Mets' rotation alongside David Peterson and the returning Senga, but it also presents a strategic move as they seek to make a deep playoff run. However, the availability of Kelly is uncertain, as he may be sought after by multiple teams, and the Mets must weigh the cost of giving up prospects like Blade Tidwell for a rental.

Kodai Senga's recent rehab start for the Mets suggests he could make a quick return to the major league rotation. After allowing four runs over 3.2 innings in Double-A, Senga stated he feels great and is ahead of schedule in his recovery from a hamstring strain. Mets manager Carlos Mendoza anticipates Senga could start in Kansas City next weekend, which is crucial as the team has struggled without him. Since his injury, the Mets have faced additional setbacks with other starters going down, underscoring Senga's importance to the rotation.

Adding to the Mets' good news, left-hander Sean Manaea is also on track to return following his own rehab assignment, which could bolster a pitching staff dealing with injuries. Furthermore, Jesse Winker’s impending return from an oblique strain offers more hope for the lineup as the team navigates a challenging stretch before the All-Star break.

The New York Mets face a pitching crisis as both starter Paul Blackburn and reliever Dedniel Núñez join the injured list. Núñez's elbow injury may require a second Tommy John surgery, while Blackburn is sidelined with a shoulder issue. Manager Carlos Mendoza expressed cautious optimism about Blackburn's recovery, yet the team’s rotation is severely depleted, with five of their top eight starters currently out.

As the Mets grapple with their options for the upcoming Subway Series against the Yankees, they are considering various strategies to fill the gaps in their rotation. Frankie Montas is set to start on Saturday, with uncertain plans for the other two games. The organization is also keeping an eye on the progress of Sean Manaea and Kodai Senga, both of whom might return just before the All-Star break, providing some much-needed relief.