The Ravens on Friday made a roster move before Saturday's playoff game in Denver, placing injured offensive lineman Jah Reid on injured reserve and activating rookie cornerback Asa Jackson to their 53-man roster.
Reid missed last weekend's wild-card win against the Indianapolis Colts with a toe injury, and he did not participate in practice at all this week. Reid started seven games at left guard this season and played in nine games overall. With Reid out against the Colts, the Ravens started Bryant McKinnie at left tackle, moved Michael Oher to right tackle and shifted rookie Kelechi Osemele, a second-round pick, to Reid's spot at guard.
Jackson is eligible to return this weekend after serving his four-game suspension for violating the NFL's policy on performance-enhancing drugs. After being given a temporary roster exemption, the Ravens had to activate him and used Reid's vacant roster spot to do so.
The fifth-round draft pick has played in three games.
If Jackson is active Saturday against the Broncos, he is expected to contribute mostly on special teams. The former Cal Poly standout has made just one special-teams tackle this season, in his season debut in Week 12.
He was suspended before the Ravens and Broncos played in Week 15.