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Scouting Report
Updated May 19, 2026
Sam Biller is a 27-year-old right-handed pitcher for the Seattle Mariners who suffered a left oblique strain in spring training (retroactive to March 25, 2026) and opened the season on the 15-day injured list. However, he has made significant strides in recovery and is expected to be activated during the Mariners' road trip. In his most recent rehab start on May 6, he pitched five scoreless innings with dominant velocity of 98 mph, indicating he is ready for his 2026 season debut. His return will impact the Mariners rotation, though it creates a logjam with Emerson Hancock's breakout performance. Biller struggled in 2025 with a 5.68 ERA and 1.406 WHIP but showed resilience in the postseason with a 2.51 ERA over three starts.
Strengths
- + Successful rehab start with 5 scoreless innings on May 6
- + Dominant velocity of 98 mph in rehab appearance
- + Postseason performance in 2025 (2.51 ERA over 3 starts)
- + Expected to be activated imminently
- + High-end performance pitcher when healthy
- + Adds crucial depth to rotation
Weaknesses
- - Injuries have derailed him in back-to-back seasons
- - Struggled significantly in 2025 with 5.68 ERA and 1.406 WHIP (career worsts)
- - Elbow issues limited him for much of 2025
- - Multiple IL stints in 2025 (mid-May and subsequent return)
- - Only one Spring Training appearance before oblique injury
- - Creates rotation logjam with Emerson Hancock's breakout
Injury Status: IL-15
About
Sam Biller is a outfielder for the Chicago Cubs.
Player Overview
OF
Chicago Cubs