Double-A New Hampshire reinstated Danner (forearm) from its 7-day injured list Wednesday.
The 24-year-old reliever was sidelined for just under a month to begin the season due to right forearm inflammation. He received the green light to join New Hampshire after he made a pair of one-inning rehab appearances at Single-A Dunedin, striking out five while allowing one earned run on one hit and two walks.