For Week 7 of the 2025 fantasy baseball season, several infield-eligible players are emerging as valuable waiver wire additions. Ceddanne Rafaela, who plays for the Boston Red Sox, is notable for his multi-position eligibility and has shown a strong performance with a .357 batting average in May. Jonathan India, now with the Kansas City Royals, is bouncing back with a .300 average in recent games, making him a must-add for those seeking versatility in their lineups.

In deeper leagues, Josh Smith from the Texas Rangers and Ryan O'Hearn of the Baltimore Orioles are making waves, with Smith hitting leadoff and O'Hearn showing power with a .303 average and seven home runs this season. Lastly, players like Jose Caballero from the Tampa Bay Rays and Brett Baty of the New York Mets offer intriguing options, especially for those looking to capitalize on positional flexibility and potential breakout performances.

Marcelo Mayer, the Boston Red Sox's top prospect, is making waves in Triple-A and could be on the verge of a call-up. With a batting average of .267, seven homers, and 34 RBIs, Mayer's performance is impressive, especially considering he missed time due to injuries in previous seasons. Currently, he ranks as the No. 3 prospect in the Red Sox system and No. 9 overall in MLB, indicating significant potential for impact upon his debut.

Despite currently being blocked by Trevor Story at shortstop, the Red Sox may find ways to integrate Mayer into their lineup. His offensive prowess, characterized by a .452 wOBA and strong plate discipline, suggests he could thrive in the majors. With his ETA set for July 2025, fantasy managers should keep a close eye on him as summer approaches.

In Week 6 of the 2025 fantasy baseball season, stashing the right prospects can pay off significantly, just as it did last year with Paul Skenes and James Wood. Players such as Bubba Chandler from the Pittsburgh Pirates, who boasts an impressive 1.42 ERA at Triple-A with 36 strikeouts over six starts, are set to make immediate impacts upon promotion. Roman Anthony of the Red Sox is another standout, currently leading AAA players with a 31.3% barrel rate, hinting at an imminent call-up. Jordan Lawlar of the Diamondbacks, hitting .381 at Triple-A, is also deserving of a spot on fantasy rosters, despite potential playing time issues. The Cubs' Matt Shaw, who was optioned back to Triple-A after a rough start, shows promise with a resurgence at the minor league level, while Cade Horton and Coby Mayo round out the top stash candidates this week, with Mayo being on the verge of promotion due to injuries on the Orioles' roster.

The Boston Red Sox find themselves in a perplexing position with top prospects Roman Anthony and Marcelo Mayer. Despite the organization’s readiness to deploy rookies like Kristian Campbell, the current roster presents challenges. With Trevor Story entrenched at shortstop and a crowded outfield, both Anthony and Mayer lack opportunities for consistent playing time in the majors. This has sparked discussions about their potential as trade assets, though speculation suggests any trade involving them would need to yield a superstar.

Anthony's path to a starting role is contingent on the performance of Ceddanne Rafaela, who has struggled offensively. Mayer, on the other hand, would likely only see time if Story suffers an injury, which given Story’s history of health issues since 2021, is not out of the question. As the Red Sox sit in a competitive AL East despite injuries, the timing of any trades involving their top prospects is crucial. A significant transaction seems premature, yet keeping both players could prove beneficial as the season progresses.

Kristian Campbell showcased his impressive baserunning skills during the Boston Red Sox's commanding 13-3 victory over the Cleveland Guardians. The 22-year-old rookie's instincts were on full display, particularly when he scored from third on a shallow fly ball that was misplayed by Guardians' center fielder Angel Martínez.

Throughout the game, Campbell reached base five times, going 2-for-2 with three walks, two RBIs, and scoring four runs. His standout moment came when he hit a two-run single with the bases loaded, solidifying his contribution to the team's offensive surge.