The Texas A&M product started five games at right guard after missing 33 consecutive contests, but was ineffective. Whether it the poor performance was due to rust or still being hurt was answered when Tucker went on Injured Reserve on Dec. 14.
Drafted by Chicago in the third round in 1999, Tucker started 27 of 35 games played during his six seasons with the Bears. He started a career-high 16 games at left guard while being named a Pro Bowl alternate in 2001, but finished each of the last three seasons on IR. Tucker played in just 11 combined games for the Bears over the last three seasons, starting 10.
Miller is slated to start at right tackle and Garza will be given a chance to compete for a starting role at right guard.
Tucker's release saves the Bears the $1.9 million salary he was due this season but will cost them $670,000 against the salary cap for the prorated portion of his $4.5 million signing bonus from a seven-year $20 million deal he signed at the end of the 2001 campaign.
The Bears also announced that restricted free agent Terrence Metcalf signed his one-year tender offer worth $656,000.
The 6-3, 318-pounder is expected to challenge for a starting role after he established career highs with 13 games played and five starts for the Bears last season
The fourth-year offensive lineman has played in 33 career games with seven starts for Chicago since being drafted in the third round by the Bears in 2002.