Week 9 Fantasy Baseball Waiver Wire: Prospect Parade Continues with Colt Emerson The Seattle Mariners have called up 20-year-old shortstop Colt Emerson for his Major League Baseball debut, marking a significant moment in the team’s pursuit of a young, high-impact player. Emerson, the Mariners’ top prospect and a consensus top-20 talent in the sport, will make his MLB debut on Sunday, nearly two months before his 21st birthday. The decision comes after the Mariners signed him to a $95 million contract in early April, signaling their confidence in his potential to contribute immediately. Emerson’s call-up is part of a broader trend of teams investing in young prospects to inject energy into their lineups. Emerson’s journey to the majors has been marked by impressive performance at the Triple-A level. In his first 44 games at that level, he has hit nine home runs and stolen 11 bases, showcasing a skill set that aligns well with fantasy baseball needs. His ability to hit for power and speed has drawn comparisons to Corey Seager, with one preseason top-100 prospects list ranking him as high as No. 10 overall. However, his .255 batting average at Triple-A, coupled with a 27.2% strikeout rate, has raised questions about his readiness for the majors. Despite these stats, scouts remain optimistic, noting that his 86.5% contact rate on pitches in the strike zone and average exit velocity suggest he has the tools to succeed. The Mariners’ decision to promote Emerson is driven by the need for a spark in their lineup, particularly as third baseman Brendan Donovan remains on the injured list. Emerson is expected to start as the team’s everyday third baseman, with the potential to shift to shortstop or second base if his performance warrants it.#diamondbacks #seattle_mariners #corey_seager #brendan_donovan #colt_emerson

Mets Struggling with Jorge Polanco's Injury History as Mariners Reflect on Past Decisions The New York Mets are facing challenges as they navigate the injury history of their new acquisition, Jorge Polanco, a former Seattle Mariners player. Polanco, who joined the Mets in 2025, has been dealing with recurring Achilles tendinitis, causing him to miss time in the early part of the season. This issue is not new for the 32-year-old infielder, who had similar problems during his first season with the Mariners in 2024. His injury struggles limited his playing time and affected his performance, despite his strong offensive contributions. Polanco’s 2024 season with the Mariners was marked by inconsistency due to his physical ailments. He posted a 92 OPS+ and a 1.3 rWAR, which were solid numbers for a player who spent much of the year on the injured reserve. However, his ability to play in the field was severely hampered by knee issues, which forced him to hit exclusively left-handed for periods of time. This situation was perplexing, as Polanco is a switch-hitter, and his limited fielding time created a unique challenge for the Mariners’ lineup. Despite these setbacks, Polanco managed to put up impressive numbers in March and April 2024. He hit .384/.418/.808 with nine home runs in just 22 games, showcasing his offensive potential when healthy. However, his performance dipped later in the season, as his injury issues persisted. The Mariners, aware of his fragility, faced a difficult decision when evaluating his free agency in 2025. While the team expressed interest in re-signing him, their concerns about his injury history ultimately influenced their decision. The Mariners’ reluctance to match the Mets’ two-year, $40 million offer for Polanco was a strategic move.#seattle_mariners #new_york_mets #mitch_garver #jorge_polanco #brendan_donovan
