Davis is on his way back to Kansas City to undergo an MRI on his elbow, Ken Rosenthal of FOX Sports reports.

This is certainly a troubling development, as the arm issues have reared their ugly head again just two weeks after Davis' return, but fantasy owners have no choice but to wait and see what is revealed in the MRI. Davis turned in four straight scoreless appearances initially upon his reinstatement from the DL, but he struggled in his last appearance, giving up two runs on two hits and three walks. Joakim Soria and Kelvin Herrera will be the top candidates to close in Davis' absence.