Marcus Harrison to miss practice?

BOURBONNAIS, Ill. -- Chicago Bears defensive tackle Marcus Harrison doesn't expect to participate in Thursday night's practice session, when the whole team -- barring any hiccups with ratifying the new CBA -- finally takes the field.

Harrison hasn't worked out with the team since it began practicing last Saturday because he reported 11 pounds overweight.

"I'm concerned anytime somebody's not practicing," Bears defensive coordinator Rod Marinelli said. "I'm very concerned about that. Get out to practice. Once he gets there, then we can start working. The first rule to getting better is showing up. You've got to show up, and be ready to work."

Harrison said he planned to speak with the coaching staff sometime Thursday afternoon about his status, but he isn't optimistic he'll return to the field to join the rest of his teammates.

Harrison hinted Saturday that he expected to be on the field by Thursday, saying "I'm not that far off."

But during each of the team's five practice sessions, Harrison has worked on conditioning drills with an athletic trainer away from teammates.

A former third-round pick, Harrison has struggled in the past to maintain the team's prescribed weight for him. Harrison reported to camp 14 pounds overweight in 2009, and it took four days of conditioning for the defensive tackle to shed enough weight for the staff to allow him back on the field.

"Marcus hasn't passed his physical," coach Lovie Smith said last week. "We're trying to get him in condition to go through one of our practices. We'll just keep monitoring him and see when he'll be ready to go."

Harrison played five games last season, contributing one tackle, in addition to batting down a pass.

During the NFL lockout, Bears officials expressed optimism about Harrison's prospects for the upcoming season, saying 2011 would be the defensive tackle's best opportunity to become a significant contributor in the defensive-line rotation.

Harrison was inactive for six of the club's first seven games last season, but played in four consecutive games from Nov. 14 to Dec. 12, before being an inactive over the last four contests.

Harrison has played in 37 games with nine starts. He's posted 53 career tackles, and three sacks.

Michael C. Wright covers the Bears for ESPNChicago.com and ESPN 1000.