Clippard, 36, will reportedly earn $1.75 million in 2021, while the option is worth $3.5 million with a $500,000 buyout. The deal also includes performance bonuses, per Piecoro.
A 14-year veteran, Clippard has played for 10 different teams, including last season with the Minnesota Twins. The two-time All-Star posted a 2.77 ERA and 2.65 FIP over 26 innings.
Clippard also spent part of the 2016 season with the Diamondbacks.
Over 777 career appearances, Clippard owns a 3.13 ERA and 3.84 FIP while collecting 68 saves.