Moll signed a minor-league contract with the Diamondbacks on Monday, Nick Piecoro of The Arizona Republic reports.
Moll has thrown just 6.2 career innings at the highest level, all of which came in 2017 with Oakland. The lefty allowed eight runs in that short sample. giving him a career 10.80 ERA, and his 4.19 ERA in 131 career Triple-A innings hardly suggests he's on the verge of a breakout.