The Blue Jays optioned Eisert to Triple-A Buffalo on Monday.
EDGE Analysis
Eisert's latest stint in the majors lasted just one day, with the left-hander ultimately going unused out of the bullpen in Sunday's 8-7 win over the Diamondbacks. The Blue Jays will announce a replacement for Eisert on the 26-man active roster when the team returns from the All-Star break.