Farnsworth, 37, was released on Aug. 9 by Tampa Bay. He had posted a 5.76 ERA in 39 appearances with the Rays, for whom he served as the closer in 2011 prior to the 2012 arrival of Fernando Rodney.
Farnsworth ranks third among active pitchers with his 849 appearances for six different teams. The 6-foot-4, 230-pounder with the big arm has 936 strikeouts in 951 1/3 innings.
Interestingly, the Bucs may soon be able to call on a pair of righties who two years ago combined for 45 saves: Mark Melancon, installed as the Bucs' closer in the wake of Jason Grilli's forearm injury, had 20 saves for the 2011 Astros, and Farnsworth had 25 for the Rays.
Tom Singer is a reporter for MLB.com and writes an MLBlog Change for a Nickel. He can also be found on Twitter @Tom_Singer. This story was not subject to the approval of Major League Baseball or its clubs.