Tsuyoshi Wada's stay with Triple-A Iowa was extended on Tuesday, when the Chicago Cubs announced they had optioned the 34-year-old lefty.
Wada had been with the minor league outfit on a rehab assignment since he was placed on the disabled list on June 28 due to left-shoulder inflammation. On Tuesday, the Cubs activated Wada, who has a 1-1 record and a 3.73 ERA in seven starts for Chicago this season, but then optioned him to Triple-A.
Wada, the former ace of the Fukuoka Softbank Hawks, started the season on the DL due to hamstring stiffness and didn't make his first start until May 20. Wada, who went 10-6 with a 2.77 ERA last season with Iowa to earn his first big league action in 2014, is 3-4 with a 3.54 ERA this year in Triple-A.