Singer will pitch out of the bullpen during the American League wild-card round, Anne Rogers of MLB.com reports.

Singer did not factor into the decision in a loss to the Astros on Thursday, allowing two runs on five hits and one walk over six innings while striking out six.

Singer (6-6) earned the win over the White Sox on Saturday, allowing five hits and issuing two walks while striking out seven batters over seven scoreless innings.

Singer (5-5) picked up the win Sunday against Colorado, allowing one run on six hits and two walks across seven innings. He struck out seven.

Singer (4-5) was saddled with the loss Tuesday versus Tampa Bay, allowing one earned run on three hits and three walks while striking out four batters in five innings.

Singer came away with a no-decision in Wednesday's 5-1 win over the Marlins, allowing one run on five hits and a walk over seven innings. He struck out five.

Singer didn't factor into the decision Thursday against the Guardians, allowing three runs (two earned) on nine hits and a walk over 3.2 innings. He struck out two.

Singer and the Royals won't play the Guardians on Wednesday after the game was postponed due to inclement weather in Cleveland.

Singer (illness) is feeling better but still needs a few days to recover strength, potentially slotting in to start Wednesday in Cleveland according to manager Matt Quatraro, Anne Rogers of MLB.com reports.

Singer has been scratched from Thursday's scheduled start against the Twins due to illness.