Zach Eflin Aims for Opening Day Return After Back Surgery

The Baltimore Orioles recently re-signed veteran starting pitcher Zach Eflin, who underwent a lumbar microdiscectomy in August. The surgery marked the end of a difficult 2025 season, but Eflin is optimistic about his recovery and readiness for the upcoming campaign.

Speaking to reporters, Eflin provided an encouraging update on his progress. Now approximately four and a half months post-surgery, he reported feeling “fantastic” and has begun some mound work. He is scheduled to throw his first bullpen session on January 6, signaling steady advancement in his rehabilitation.

Eflin, 31, joined the Orioles during the 2024 season and made an immediate impact, posting a 2.60 ERA across nine starts. Expectations were high for 2025, but injuries and inconsistent performance cut his season short, prompting the midseason procedure.

While an official timeline for his return has not been issued, Eflin’s goal is clear: be ready for the first start of the season. His positive outlook and early bullpen schedule provide reason for optimism among Orioles fans and front office personnel alike.

1. Recovery and Rehabilitation Progress

Eflin’s recovery from the lumbar microdiscectomy appears to be progressing smoothly. Four and a half months after the procedure, he reports feeling stronger than ever, a sign that his rehabilitation regimen is working effectively. He has gradually resumed mound work and is preparing for his first bullpen session in early January. This early January start allows for a structured buildup over several weeks, providing time to regain velocity, command, and endurance ahead of Opening Day. The pitcher emphasized that while his plan is to be ready for the season opener, unforeseen complications could adjust the timeline. Despite this caveat, his current physical condition and optimism suggest a high probability of returning close to schedule. Eflin’s reported confidence and proactive rehab efforts reflect his experience as a veteran player who has managed prior injuries and understands the importance of a measured approach to returning to full competition.

2. Eflin’s Orioles Tenure and 2025 Season

Eflin first joined Baltimore in 2024, quickly establishing himself as a reliable starter. His initial nine starts with the team produced a 2.60 ERA, giving the Orioles confidence in his ability to anchor part of the rotation. The 2025 season, however, was plagued by injuries and uneven performance. Eflin was ultimately shut down in August due to a lumbar issue, cutting short what was expected to be a pivotal year in his tenure with the team. The injury limited his availability and impacted Baltimore’s rotation depth, making his recovery timeline a critical factor in offseason planning. The team’s investment in re-signing him demonstrates faith in his ability to return to form. Looking ahead, Eflin’s experience and prior success in Baltimore provide a foundation for optimism. If he regains full health, he could return to a key role in the rotation, helping stabilize the team for the 2026 campaign.

3. Implications for Opening Day

Eflin’s goal of being ready for Opening Day is significant for the Orioles’ roster planning. A healthy Eflin would strengthen the starting rotation and offer consistency at a position that was challenged by injuries last season. Bullpen sessions beginning in early January provide a structured timeline to rebuild pitching strength and refine mechanics. These sessions will serve as a gauge for progress and readiness, helping the team make informed decisions about rotation placement. While no official timetable has been released, Eflin’s positive reports and early activity suggest he could be available either at the very start of the season or shortly thereafter. The team is likely monitoring him closely to ensure a safe and effective return. Eflin’s situation underscores the importance of health management in MLB, particularly for veteran pitchers recovering from significant procedures. A successful return could have a major impact on Baltimore’s pitching depth and early-season competitiveness.