Titans’ Mike Heimerdinger very sick, undergoing chemotherapy

Tennessee Titans offensive coordinator Mike Heimerdinger has cancer and is undergoing chemotherapy, head coach Jeff Fisher said today.

Jim Wyatt of the Tennessean reports that Fisher learned of the news this morning.

Paul Kuharsky of ESPN reports that Heimerdinger is “very sick.”

The 58-year-old Heimerdinger was at the Titans’ facility this morning for team meetings.