The Rangers optioned Allard to Triple-A Round Rock on Thursday, Levi Weaver of The Athletic reports.
The Rangers will swap Allard out of their bullpen for a fresh arm in Josh Sborz, who was called up from Round Rock in advance of Thursday's game against the Royals. Allard covered three innings out of the bullpen in Wednesday's 8-2 loss, giving up one run on two hits and a walk while striking out one.