Cubs right-hander Andy Sonnanstine is now a free agent after declining an outright assignment to Triple-A, according to Paul Sullivan of the Chicago Tribune (via Twitter). Chicago outrighted the veteran to their Iowa affiliate on Thursday.
Sonnanstine, who turned 29 last Saturday, signed a non-guaranteed split contract with the club in December. The longtime Rays hurler posted a 5.55 ERA with 12 walks and 12 strikeouts in 35.3 innings of work for Tampa Bay last year.
The 6'3" pitcher made 72 starts for the Rays from 2007-2009 but worked mostly out of the bullpen in '10 and '11.