Pecko (thoracic outlet syndrome) was activated from the 7-day injured list Friday.
Pecko made three rehab appearances in April while working his way back from thoracic outlet syndrome. He posted a sparkling 1.13 ERA with 15 strikeouts over eight innings during this stretch. Pecko made his first appearance at Triple-A Sugar Land over the weekend, working three scoreless frames while striking out six and walking one.