DeRosa gets a $750,000 salary this year under Tuesday’s deal, and the Blue Jays have a $750,000 option for 2014 with a $25,000 buyout.
The 37-year-old hit .188 with five doubles and six RBIs in 48 games last season for the Washington Nationals, playing all four infield positions and both corner outfield spots.
He has a .270 average with 93 homers and 458 RBIs in 15 seasons with Atlanta (1988-04), Texas (2005-06), the Chicago Cubs (2007-08), Cleveland (2009), St. Louis (2009), San Francisco (2010-11) and Washington.
Right-hander Sam Dyson was designated for assignment to clear a roster spot.
Source: Associated Press