The Arizona Diamondbacks have signed another core player to a contract extension, this time with pitcher Merrill Kelly. The D-backs signed Kelly out of Korea following the 2018 season with the gamble that he could develop into a reliable starter. Over his three seasons in Arizona, Kelly made 64 starts and pitched to a 4.27 ERA and 4.6 bWAR in 372 2⁄3 innings. Kelly overcame thoracic outlet syndrome to post his best year in a D-backs uniform in 2021, making 27 starts and delivering 2.5 bWAR in value on a 52-win team. The team is gambling on him to be able to provide similar value the next two seasons, even though those are Kelly’s Age 34 and 35 seasons.