Niese, 31, never really got going this spring owing to injuries, including a recent diagnosis of a sub scapularis muscle strain. While it’s not clear at this point what kind of treatment that will require, it evidently was a significant enough issue that the team decided to part ways.
The long-time MLB starter had been looking to get back on track after turning in a middling 2016 effort that ended with knee surgery and then missing all of the ensuing campaign. Before things turned south, Niese had been quite a productive starter. Between 2008 and 2015, he compiled over a thousand innings of 3.91 ERA ball for the Mets.