Pirates ace A.J. Burnett placed on the DL with torn calf
Burnett injured the calf while working out Wednesday and was placed on the 15-day disabled list a day later by Pittsburgh.
The 36-year-old Burnett is 4-6 this season with a 4.00 ERA. He threw a season-high 112 pitches in a win over the Chicago Cubs last Saturday but said the injury is not related.
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