Triple-A Norfolk reinstated Lowther (shoulder) from its 7-day injured list Wednesday.
Lowther wrapped up his three-game rehab assignment at Double-A Bowie on Aug. 26, when he tossed four innings and gave up two unearned runs on five hits and a walk while striking out four. Now that he's back in action at Triple-A, he should slot back into the Norfolk rotation. Before landing on the shelf, Lowther posted a 6.93 ERA over seven starts with Norfolk.