Demarco Cosby, an H-back/tight end from the University of Central Missouri, has agreed to terms with St. Louis after a good workout Monday. 

He's expected to sign Tuesday, as the Rams return to practice following a day off Monday.

The rookie free agent caught 110 passes for 1,483 yards and 15 touchdowns over his past two seasons at Central Missouri.

He ran a 4.66 in the 40-yard dash at his pro day in the spring.