The Pirates outrighted Eickhoff to Triple-A Indianapolis on Sunday after he cleared waivers.
Eickhoff will remain in the organization as a swingman at Indianapolis after he was added to and removed from the Pirates' 40-man roster following one spot start with the big club. In his Pittsburgh debut last Wednesday against the Cubs, Eickhoff was tagged for 10 earned runs on 10 hits and one walk while striking out four over 4.1 innings.