Scouting Report: Sam Biller
Chicago Cubs | OF
Overall
Summary
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
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