The Columbus Blue Jackets will be without their bench boss on Saturday.
Coach Rick Bowness missed his second straight game when his team hosted the Philadelphia Flyers, general manager Don Waddell told reporters.
Bowness also missed Thursday's 3-1 loss to the Tampa Bay Lightning and was not present for practice on Friday or Saturday's morning skate.
Waddell said Bowness, who was previously described as "under the weather," is "day-to-day," adding he would not coach practice Monday but could return Tuesday on the road against the New York Islanders.
The 71-year-old coach is undergoing further testing for an issue he has been battling since Thursday morning.
Assistant Don Granato, the former Buffalo Sabres head coach, took over for Bowness on Thursday will do so once again.
