(UPDATE 4:35 p.m.) -- The 49ers confirmed the signing of Glenn Dorsey to a two-year contract.
“We are very pleased to add Glenn to our team,” said 49ers General Manager Trent Baalke. “Glenn brings great versatility to our defensive front, and we look forward to his contributions on the field and in the community.”
The 49ers, who have lost three significant players as free agents, made their first addition with the agreement of defensive lineman Glenn Dorsey, according to multiple reports.
Dorsey, a five-year veteran, was the No. 5 overall selection of the Kansas City Chiefs in 2008. He comes to the 49ers one day after starting nose tackle Isaac Sopoaga signed with the Philadelphia Eagles.
Dorsey proved to be a strong player against the run, but he had just four sacks in five seasons. He played in just four games last season before sustaining a season-ending calf injury.
Dorsey (6-foot-1, 297 pounds) joins a 49ers defensive line that includes starters Justin Smith and Ray McDonald. Backup nose tackle Ricky Jean Francois is visiting the Philadelphia Eagles on Wednesday. Dorsey appears to fit the same mold as Sopoaga and Jean Francois -- two players who lined up at nose tackle but also had the versatility to play other spots on the defensive line.
Last season, the 49ers played their base defense with three lineman about one-third of the time. In passing situations, the 49ers go with a four-man line, which includes two interior linemen, along with outside pass rushers Aldon Smith and Ahmad Brooks.