Singer (shoulder) was reinstated from the 10-day injured list ahead of Wednesday's start against the Yankees, Anne Rogers of MLB.com reports.
Singer had been on the injured list since July 20 due to right shoulder fatigue, but he began a rehab assignment at the end of July. The right-hander made two starts at Triple-A Omaha and allowed seven runs on eight hits and a walk while striking out two in 4.2 innings. Singer allowed seven runs in two innings during his most recent major-league start, and he'll attempt to bounce back in Wednesday's series finale.