"Hartwig, 28 this month, has a limited big league track record. He tossed 42 innings for the Mets over the 2023 and 2024 seasons. He allowed 24 earned runs, giving him a 5.14 ERA. He struck out 18% of batters faced and issued walks at a 10.1% rate, both subpar figures, but induced grounders on 46.5% of balls in play. He averaged in the mid-90s with his four-seamer and sinker while also mixing in a cutter, slider and changeup."
"As a minor leaguer, Hartwig has generally been able to get strikeouts but hasn't featured pristine control. Dating back to the start of 2023, he has thrown 94 2/3 innings on the farm, mostly at Triple-A. In that time, he has a 4.47 ERA, 25.6% strikeout rate and 11.3% walk rate. In 2025, he was out to a good start, having tossed 23 2/3 innings with a 3.42 ERA, 29.2% strikeout rate and 8.8% walk rate."
The Twins are signing right-hander Grant Hartwig to a minor-league contract with a major-league spring-training invite. Hartwig is 28 and has 42 MLB innings with a 5.14 ERA, an 18% strikeout rate, a 10.1% walk rate and a 46.5% groundball rate, featuring mid-90s four-seam and sinker velocity plus a cutter, slider and changeup. He underwent left-knee meniscus surgery in June 2024, was non-tendered and re-signed to a minor-league deal before joining Japan’s Hanshin Tigers in July 2025, posting a 3.65 ERA in 12 1/3 innings. Minor-league results since 2023 show a 4.47 ERA, 25.6% K rate and 11.3% BB rate, while his brief NPB stint showed reduced strikeouts and increased walks. The Twins reshaped their bullpen last season, leaving Hartwig’s potential role for 2026 unclear.
#grant-hartwig #minnesota-twins #pitching-performance #meniscus-surgery #nippon-professional-baseball
Read at MLB Trade Rumors
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