University of Connecticut men’s basketball coach Jim Calhoun will take an indefinite medical leave of absence, effective immediately, to deal with worsening spinal stenosis, a lower back condition that causes him severe pain and hampers mobility.

Calhoun will not coach Saturday’s game against Seton Hall nor Monday’s game at Louisville and his condition will be evaluated on a daily basis as options for treatment are explored. Associate head coach George Blaney will be in charge of the team in Calhoun’s absence.