The Green Bay Packers signed 24-year-old tight end DeMarco Cosby Monday, according to the team's official website. Cosby, who puts the Packers at the 90-man roster limit, will wear No. 46.

Roster move - Packers sign TE DeMarco Cosby, an undrafted rookie last year in Rams camp, from Central Missouri: pckrs.com/9wdg

— Green Bay Packers (@packers) July 30, 2012

Cosby (6-3, 245 lbs.) was signed by the St. Louis Rams as an undrafted free agent out of Central Missouri in 2011. After being cut after camp, the Rams brought back Cosby to fill out their practice squad. He lasted just one game there before being released for good in early September.

As a senior at Central Missouri, Cosby had single-season records for a tight end in catches (71), yards (970) and touchdowns (10). He finished his collegiate career with the most catches (141), yards (2,146) and touchdowns (20) by a tight end.

He ran the 40-yard dash in 4.66 seconds and bench-pressed 225 pounds 18 times at his pro day in 2011.

The move is likely in response to tight end Eric Lair's injury Monday. Coach Mike McCarthy didn't have immediate details on the issue, but adding Cosby now could mean Lair is facing a significant injury. The Packers also had an open roster spot after releasing Charlie Peprah and Grant Cook last week.

When push comes to shove, however, Cosby is likely nothing more than a camp body. He'll be hard-pressed to warrant consideration for the 53-man roster or practice squad.