Sean Nolin, 31, made eight appearances, seven of them starts, for the Toronto Blue Jays and Oakland A’s in 2013-15, but Tommy John surgery kept him off the mound in 2016-17. He got a shot in the Colorado Rockies’ organization in 2018, pitched in the Chicago White Sox and in the Seattle Mariners’ systems in 2019, and played independent ball on Long Island, then he went to Japan in 2020, where he pitched for the Seibu Lions.
Signed to a minor league deal by Washington this past March, Nolin pitched at High-A East Wilmington and Triple-A East Rochester before he got the call back to the majors before a sort-of-doubleheader with the New York Mets in Citi Field on Wednesday.