The Cincinnati Bengals placed defensive tackle Geno Atkins on injured reserve Monday and signed defensive tackle Christo Bilukidi. The 25-year-old Georgia product had six sacks and 20 tackles in nine games this season after leading all interior lineman last season with 12 1/2 sacks while earning his second Pro Bowl selection. Source: Sports Network SteveRobWhatever's Take: Atkins tore his ACL last Thursday against the Dolphins and is lost for the season. A huge blow to the Bengals, it will be hard to replace his production at his position.