Blanton, 34, did not pitch in 2014 after the Los Angeles Angels released him in March.
In 2013, Blanton posted a 6.04 ERA with 108 strikeouts and 34 walks over 132 2/3 innings.
Prior to joining the Angels on a two-year, $15 million deal in December 2012, Blanton had stints with the Oakland Athletics, Philadelphia Phillies and Los Angeles Dodgers.
Over 10 seasons, Blanton has recorded a 4.51 ERA with 1086 strikeouts and 412 walks.
- Jack Jorgensen