Cleveland, OH. (PFCritics) -- The Baltimore Ravens signed four more draft picks on Friday, including Chris Chester, David Pittman, Dawan Landry, an Ryan LaCasse. The only draft picks that have not been signed by the Ravens yet are first-round defensive tackle Haloti Ngata and fourth-round wide receiver Demetrius Williams.

Chester, a second-round offensive lineman from Oklahoma, is 6-foot-3, 302 pounds. Pittman, a third-round cornerback from Northwestern State, is 5-foot-11 and weighs 182 pounds. Both men will compete for significant playing time this season. Pittman, a fifth-round safety from Georgia Tech, is 6-foot-1, 219 pounds. LaCasse, a seventh-round safety from Syracuse, is 6-foot-2, 257 pounds.