Seattle Mariners Roster
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Seattle Mariners second baseman/outfielder Sam Haggerty (personal) will start the season on the injured list with a personal medical issue, per general manager Justin Hollander. Hollander only specified that the injury is non-baseball related. The 29-year-old spent most of his time at Triple-A Tacoma last season, slashing .324/.419/.578 with eight home runs, 19 RBI, and 19 stolen bases in 222 plate appearances. However, he batted just .136 in 22 spring plate appearances.
Seattle Mariners relief pitcher Matt Brash (elbow) threw 25 pitches off the mound at 85 percent effort on Monday, per Seattle Times' Ryan Divish. The 25-year-old has been positively progressing through right elbow inflammation this spring. Brash played a key part in the Mariners bullpen last season, going 9-4 with four saves and 24 holds as well as a 3.06 ERA, 1.33 WHIP, and 34.7% strikeout rate in 70 2/3 innings pitched. Fantasy managers should continue to monitor his progress for a better timetable for his return. He should be able to provide fantasy value in at least all saves-plus-holds leagues and deeper roto leagues if he can return to the team relatively soon.
Seattle Mariners relief pitcher Gregory Santos (lat) is scheduled to undergo an MRI on Thursday, per the Seattle Times' Ryan Divish. Santos has been dealing with a lat strain this spring which has slowed his progress on and off. The 24-year-old will continue his throwing program if the MRI comes back clean. While he may not provide a ton of fantasy value upon his return to the team, the Mariners will welcome him back as their bullpen depth is currently short with Matt Brash (elbow) dealing with right elbow inflammation.
Seattle Mariners right-hander Emerson Hancock will now open the 2024 season in the team's starting rotation as the fifth starter with Bryan Woo (elbow) starting the year on the injured list due to elbow inflammation. The 24-year-old Hancock, the former sixth overall pick in 2020 out of Georgia, is lined up to make his first start of 2024 next Monday in a strong matchup against the Cleveland Guardians. He made his MLB debut in 2023 and went 3-3 with a 4.50 ERA (4.09 FIP) and a 1.33 WHIP with three walks and six strikeouts in 12 innings over three starts before being shut down with a shoulder ailment. Until Hancock shows more consistency, fantasy managers in mixed leagues can probably ignore him, especially since he could only make a few starts for Seattle before being sent back to the farm.
Seattle Mariners right-hander Bryan Woo (elbow) will begin the season on the injured list due to elbow inflammation. Woo is an option for rotation depth in deep-mixed fantasy leagues after he went 4-5 with a 4.21 ERA (4.36 FIP) and 1.21 WHIP with 31 walks and 93 strikeouts in 87 2/3 innings in his first 18 major-league starts for the Mariners in 2023. However, his stock has now dropped with him starting the year on the shelf. The former sixth-round pick in 2021 out of Cal Poly will settle into the back end of Seattle's rotation whenever he does make his 2024 debut. The 24-year-old has a diverse arsenal of pitches and could improve his strikeout rate, but if he's inconsistent, the M's have other interesting starting arms that could bump him from the rotation.