Week 12 of the fantasy baseball season highlights several standout players on the waiver wire. J.P. Crawford of the Seattle Mariners is showing a resurgence, boasting a .296 batting average with solid power and speed numbers, making him a valuable addition for teams needing help at shortstop. Parker Meadows, now healthy, has a potential for five-category contributions, despite a slow start. Ernie Clement, a versatile infielder for the Toronto Blue Jays, is having a career year but faces regression concerns. Nolan Schanuel of the Los Angeles Angels is improving his performance metrics, making him a solid pick for deeper leagues. Finally, Brooks Lee from the Minnesota Twins is starting to show promise after early struggles, making him a worthy bench stash. Fantasy managers should act quickly to capitalize on these emerging talents.

The Boston Red Sox made a significant trade, sending Rafael Devers, the last member of their 2018 World Series team, to the San Francisco Giants. This move is poised to bolster the Giants, who boast the fifth-best record in the National League. In fantasy baseball, Week 12 presents several key hitter pickups. Ryan McMahon of the Colorado Rockies, currently 29% rostered, has been on fire at home, slashing .291/.426/.544. Sal Frelick from the Milwaukee Brewers is also worth a look, batting close to .300 and excelling in stolen bases. Alejandro Kirk of the Toronto Blue Jays is performing like a top-10 catcher, hitting .370 over the last two weeks. J.P. Crawford of the Seattle Mariners is consistently hitting well, while Max Muncy of the Athletics, although less rostered, is showcasing his power and versatility, making him an intriguing option for fantasy lineups.

The Seattle Mariners dominated the Cleveland Guardians in a 6-0 victory, completing a three-game sweep at home. J.P. Crawford highlighted the game with a grand slam, his fifth career slam, during a five-run second inning. Emerson Hancock delivered an impressive performance on the mound, pitching seven scoreless innings and allowing only two hits, further cementing his role as a reliable starter. The Guardians struggled once again, marking their eighth loss in ten games, as they head into a series against the San Francisco Giants.

In a thrilling showdown, the Seattle Mariners edged out the Cleveland Guardians 4-3 with a dramatic walk-off single in the ninth inning by Jorge Polanco. The Mariners were able to tie the game after trailing 3-2, thanks to a wild pitch by Guardians closer Emmanuel Clase, allowing the pinch-runner Dylan Moore to score. Despite a home run from José Ramírez, it was a frustrating night for the Guardians, who suffered their seventh loss in nine games.

The Guardians initially fell behind 2-0 after the Mariners' strong start, but rallied to take the lead with runs in the fourth, fifth, and sixth innings. However, their late-game defense faltered, breaking a remarkable streak of 121 consecutive wins when leading after eight innings. This latest defeat raises questions about the Guardians' ability to close games and their reliance on Clase in high-pressure situations.

As the MLB season progresses into Week 11, fantasy managers face a plethora of options on the waiver wire. Key players like Tyler Stephenson and Sal Frelick have emerged as must-adds due to their consistent performances and favorable matchups. Stephenson has been hitting well for the Cincinnati Reds while Frelick’s contributions in batting average and steals make him a valuable asset. Parker Meadows' impressive return for the Detroit Tigers also makes him a target as he looks to build on his leadoff role.

Other noteworthy choices include Chase Meidroth, who offers versatility across the infield positions, alongside Toronto's Ernie Clement and Minnesota’s Trevor Larnach, both providing a good balance of average and power. With younger talents like Christian Encarnacion-Strand now back from injury and making an immediate impact, fantasy owners would do well to assess their rosters and consider these potential streamers to bolster their lineups in the coming week.