Lyons has been a member of the New York organization since August 2019, but he only threw 8 2/3 innings as a Yankee a year ago and hasn’t pitched for them this season. That said, the 32-year-old – a former Cardinal and Pirate – has been a fairly successful reliever in the majors, where he has logged a 4.20 ERA/4.04 FIP with 9.26 K/9 and 2.85 BB/9 in 281 innings. He could now factor into a Yankees bullpen that has a pair of higher-profile southpaws in Aroldis Chapman and Zack Britton.
Heller, meanwhile, has been a Yankee since they acquired him from the Indians as part of a trade for southpaw Andrew Miller in 2016. Heller hasn’t seen much action in the majors since then (31 1/3 innings), but he did throw six frames of two-run ball this year before his season came to an end.