Baker comes to York after spending the last four seasons in the Arizona Diamondbacks farm system, going 18-8 with a 3.55 ERA in 136 games (19 starts). The right-hander logged at least 56 innings of work in all four seasons and has thrown 291.1 total innings in his professional career. A product of California State University Chico, Baker started his career in Low-A in 2014 before dominating with a 10-1 record with 59 strikeouts at Single-A Kane County in 2015. In 2016 and 2017, Baker mainly pitched at High-A Visalia and also made three combined appearances for Triple-A Reno. Baker was selected in the 29th round of the 2014 MLB Draft by the Diamondbacks.