Raiders RCB Tracy Porter left Monday night's Week 3 game against the Broncos with a head injury.

Porter was hurt while tackling Demaryius Thomas on the final play of the third quarter. Phillip Adams is the next man up in the Oakland secondary.

The Raiders fear CB Tracy Porter suffered a severe groin injury in Friday night's preseason game against the Saints.

Not only do the Raiders have a pathetic starting lineup, they have zero depth. So losing an entrenched top-three cornerback like Porter could force them to put someone like converted running back Taiwan Jones into the lineup. 32-year-old Joselio Hanson would be another candidate for increased snaps.

ESPN's Bill Williamson thinks the Raiders see Tracy Porter as their No. 3 corner.

New Raiders CB Tracy Porter calls the seizure that marred his 2012 a "one-time deal."

"(They) never found a cause," Porter said. "Might have been the altitude ... I am 100 percent." Porter believes the ordeal affected his market. As long as he stays healthy, Porter will be a starter in Oakland.

Raiders signed CB Tracy Porter to a one-year contract.

Free agent CB Tracy Porter will visit the Raiders on Wednesday.

This, after he visited the Saints on Monday. Per ESPN's Bill Williamson, both teams "want" Porter, and a decision is expected shortly. Porter would be in for major snaps with either team.

The Saints have reportedly shown interest in free agent CB Tracy Porter.

Porter's market is heating up, as he's reportedly drawn interest from the Raiders, Dolphins, and now the team with which he began his career. Porter spent his first four NFL seasons in New Orleans. When healthy, he's primarily a right cornerback who can drop down to cover slot receivers in the nickel.

The Raiders have reportedly been "talking to" free agent CB Tracy Porter.

The Dolphins also recently "made an inquiry" on Porter. The 26-year-old corner played for Raiders head coach Dennis Allen in New Orleans, and Oakland is in dire shape in the secondary. Porter should be amenable to a cheap deal.

The Dolphins recently "made an inquiry" on free agent CB Tracy Porter.

Porter's market has been predictably dead after seizures and a concussion ruined his 2012 season. In years prior, Porter's knee was a concern. Still only 26 years old, Porter would be worth bringing to camp to battle for a roster spot.

Free agent CB Tracy Porter conceded that he "highly doubts" the Broncos will re-sign him.

The Broncos haven't even reached out to Porter's agent. "They seem to be set on the guys they were playing with last year," he said. "I just kind of got lost in the shuffle. I mean that's the nature of the business. So, I just have to see what else is out there." With his seizure issues behind him, the ex-Saint shouldn't have trouble finding a job. Porter could be a steal for a corner-needy team like the Raiders.

The Broncos are not expected to re-sign free agent CB Tracy Porter.

Denver paid Porter $4 million in 2012 to appear in six games and struggle in the rare instances he played. In-house alternatives at right corner are Tony Carter and Omar Bolden, although the Denver Post expects the Broncos to prioritize upgrading this position. Rumors have linked them to Darrelle Revis.

ESPN's Bill Williamson believes free agent CB Tracy Porter could be a target for the Raiders.

The Raiders need help at just about every position, but they have a glaring need at corner. They currently don't have a single natural, starting-caliber corner on their roster. Porter languished behind Champ Bailey, Chris Harris and Tony Carter in Denver last season, so he could be had on the cheap.

Impending free agent CB Tracy Porter insists he will be "on the field" in 2013 after missing the majority of the 2012 season due to the after-effects of an August seizure.

Porter began experiencing light-headedness and a rapid heartbeat in October. He returned in late December, only to go down with a concussion after just one possession. Porter lost his starting job to Chris Harris and had trouble even entering the defensive back rotation. The 26-year-old is a poor bet to re-sign in Denver.

Broncos declared CB Tracy Porter, QB Caleb Hanie, WR Andre Caldwell, FB Chris Gronkowski, TE Julius Thomas, OL C.J. Davis, and DT Sealver Siliga inactive for Saturday's Divisional Round playoff tilt with the Ravens.

Porter is battling a concussion, and he has played in just six games this season after coming over as a free agent from the Saints. Every other player is a healthy inactive. Both the Ravens and the Broncos enter the contest extremely healthy.

Broncos RCB Tracy Porter has been ruled out for the Divisional Round.

Porter was concussed in Week 16 and hasn't played since. The Broncos have settled in with a regular secondary lineup of Chris Harris in the slot, Champ Bailey mirroring No. 1 receivers, and Tony Carter versus No. 2s in the nickel set.

Coach John Fox suggested Tracy Porter could return to a backup role this week.

Porter hasn't been active since falling ill during Week 6. Since then, the Broncos have gone 9-0 while Chris Harris and Tony Carter have excelled opposite Champ Bailey. Porter is now considered mere depth despite being healthy.

Broncos RCB Tracy Porter (illness) has been cleared to play, but may have lost his starting job.

Porter has been sidelined by seizure symptoms for six weeks. Chris Harris and Tony Carter have played well in his absence, which means Porter could be a healthy scratch in Week 12. The Broncos defense has quietly emerged as one of the best in the league.

Broncos RCB Tracy Porter (illness) has been cleared to participate in non-contact drills.

Porter practiced on a limited basis Friday. He won't play in Sunday's game against the Chargers, but is at least getting close in time for a potential stretch-run return. Porter suffered an epileptic seizure in mid-August and has since experienced post-seizure symptoms. His exact return date remains unclear.

Broncos RCB Tracy Porter (illness) has been ruled out for Week 10 against the Panthers.

Porter hasn't had any setbacks, but remains out indefinitely. The Broncos haven't ruled out shutting him down for the season. Even when Porter is cleared to return, he won't be guaranteed a starting job. Chris Harris has filled in the last two weeks and will continue to start. Tony Carter is the third cornerback.

Broncos RCB Tracy Porter (illness) has been officially ruled out for Week 9 against the Bengals.

Porter can't shake his head issues, and will miss his third straight game. Chris Harris will start opposite Champ Bailey. Expect Bailey to spend his afternoon 1-on-1 with A.J. Green.