FLOWERY BRANCH, Ga. -- The Atlanta Falcons have placed offensive guard Garrett Reynolds on injured reserve with a lower back injury.

The team signed guard Phillipkeith Manley to the active roster.

Reynolds started six games this season before missing the last two games. Rookie Peter Konz moved up as the starter as the Falcons (8-0) remained the NFL's only unbeaten team.

Reynolds has played in 28 games with 14 starts in four seasons with the Falcons.

Manley was signed by Atlanta as an undrafted rookie out of Toledo in April. He later was signed to the Falcons' practice squad.

Atlanta plays at New Orleans on Sunday.