Denver Broncos cornerback Tracy Porter was able to participate fully in a Thursday practice session.

Porter was listed as questionable -- and did not play -- in last Sunday's 34-14 victory over the New Orleans Saints, having missed practice for two days due to light-headedness and a rapid heartbeat, symptoms that preceded a seizure suffered in August.

The fifth-year pro out of Indiana returned to practice on Wednesday, albeit in limited fashion,

In five games this season, Porter has totaled 21 tackles and one interception returned for a touchdown.