On Tuesday, Steelers coach Mike Tomlin declared that tight end Heath Miller had no symptoms, nine days after suffering a concussion against the Ravens.
On Thursday, the symptoms returned.
According to Ed Bouchette of the Pittsburgh Post-Gazette, Miller suffered a setback on Thursday, and he missed practice. His status for Sunday’s game against the Jets is in doubt.
Miller practiced on Wednesday for the first time since the December 5 game, but he thereafter developed a “mild headache.”