Seattle Mariners general manager Justin Hollander shared insights into the team's second base strategy for the 2025 season. Dylan Moore is expected to take the lead at second base, with Ryan Bliss and Leo Rivas also in the mix. Cole Young, a notable prospect, could make an impression during spring training, although the team plans to start him at Triple-A Tacoma.

Moore, a versatile player, had a challenging 2023 season with a .201 batting average, but he contributed with his speed, stealing 32 bases. Bliss and Rivas offer intriguing options as they look to establish themselves further in the major leagues. The Mariners are gearing up for spring training soon, aiming to solidify their infield lineup.

Every MLB season brings a fresh wave of fantasy baseball prospects eager to make their mark. With evolving league rules favoring early call-ups, it’s crucial for fantasy players to stay ahead of the curve. Insights into the projected ETAs for notable prospects, categorized from Opening Day to late-season call-ups, provide a roadmap for savvy drafting and in-season strategies.

For 2025, key prospects like Tyler Black (MIL), Ryan Bliss (SEA), Jasson Domínguez (NYY), and Kumar Rocker (TEX) are expected to debut on Opening Day, while others like Luisangel Acuña (NYM) and Kristian Campbell (BOS) may arrive in early season. Mid-season talents include Kevin Alcantara (CHC) and Cade Cavalli (WAS), with late-season prospects such as Samuel Basallo (BAL) and Travis Bazzana (CLE) lined up for potential late-year boosts. This cheat sheet serves as a vital asset for managing rosters and maximizing fantasy points.

The Chicago Cubs have officially traded infielder/outfielder Miles Mastrobuoni to the Seattle Mariners following a designation for assignment. The 29-year-old player, who debuted with the Tampa Bay Rays in 2022, has struggled offensively with a lifetime batting average of .219 and a dismal .194 in the previous season with the Cubs.

In Seattle, Mastrobuoni is expected to compete for a spot as the Mariners are looking to strengthen their infield. The team has only made one significant move in free agency by signing Donovan Solano, who will likely share duties at first base and potentially second and third base. Mastrobuoni's left-handed batter profile may complement manager Dan Wilson's strategies.