ENGLEWOOD, Colo. -- Denver Broncos cornerback Tracy Porter didn't travel with the team to Cincinnati and will miss his third straight game as doctors continue to regulate his medication to control seizures.

Porter wasn't on the field Friday, a day after being cleared to practice. Coach John Fox said team doctors were still "regulating the medication. Not that it was a setback, but there was a little bit of an issue."

Porter also wasn't allowed to fly to Denver's game at San Diego on Oct. 15 after he experienced light-headedness and a racing heart - similar to the symptoms he felt before his seizure in August. He missed last week's game against New Orleans.

Porter has been replaced by Chris Harris in the starting lineup with Tony Carter moving up to nickel back.