New York Mets pitcher David Peterson (hip) threw his fourth bullpen session of spring training on Tuesday, tossing 15 pitches. "I feel like a real player again," the 28-year-old said. "It feels different, but it feels different in a better way." Peterson underwent surgery to fix a labrum tear in his left hip last November and is trending toward a late May return. Had he been healthy, he may have had a chance to earn a rotation spot to start 2024. Peterson has been erratic throughout his career but has compiled several successful seasons. Given the lack of depth in the Mets rotation, Peterson could become a relevant fantasy name once he returns to the team.

Kansas City Royals starting pitching prospect Asa Lacy (elbow) announced on his Twitter page Tuesday that he had Tommy John surgery on his elbow. The 24-year-old, who was a former first-round pick, has been plagued with injuries throughout his career. He last pitched professionally in 2022 with Double-A Northwest Arkansas, managing just 20 innings pitched. It is another unfortunate setback for Lacy, whose inability to stay healthy has limited his fantasy value even in deeper dynasty leagues.

Philadelphia Phillies first baseman Bryce Harper (back) was held out of the lineup for the fifth consecutive day in Tuesday's 0-0 Grapefruit League tie with the Tigers. The 31-year-old has been dealing with back stiffness. However, manager Rob Thompson said, "He took ground balls today and swung the bat. He's feeling better." It does not sound like a serious injury, and the Phillies may simply be playing it safe with one of their top players. Fortunately, at this time, it seems like the organization is not worried about his health heading into Opening Day.

Los Angeles Dodgers relief pitcher Brusdar Graterol (shoulder) will not be on the 26-man roster for the upcoming Seoul Series, as he was placed on the 15-day injured list Tuesday with right shoulder inflammation. The 25-year-old made just one appearance this spring, tossing a scoreless inning. The severity of his injury is unknown, but losing Graterol to start the season will be a hit to the team's bullpen depth. Graterol was very effective in 2023, going 4-2 with seven saves and 19 holds along with a 1.20 ERA, 0.97 WHIP, and 18.7% strikeout rate in 67 1/3 innings pitched. He is still worth keeping an eye on in saves-plus-holds leagues at this time.

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.