Steelers head coach Bill Cowher said the injury, which occured sometime last week and has been bothering the backup center for the past week, may even be career-threatening.
Because of the injury to Okobi, rookie Marvin Philip takes a step up the depth chart and even saw time with the first team offense Wednesday afternoon.
Philip has looked good at times and the team likes his potential. He was center for both groups in the two-minute offense drill and looked to have some problems with his long snaps.
Hines Ward tried to return to practice early, but left after some team drills as his hamstring is still tight. Cowher said it wasn't a setback, however, and that Ward was just seeing how things felt.
Cowher did say that linebacker Joey Porter will likely be activated off the PUP list Wednesday and will practice for the first time in this camp. Porter has been out since having offseason knee surgery.
"Come on Nua, show me something," Cowher yelled to Nua moments after chastisting Bailey to, "stay low and come off the ball."
Both are battling for a backup spot on the defensive line.
On the first play of team 11-on-11 drills, Heath Miller made a beautiful one-handed catch of a Ben Roethlisberger pass in the flats. He took one step, however, and had the ball stripped by James Harrison. Deshea Townsend picked the ball up and easily scored.
Rookie wideout Santonio Holmes continues to have his ups and downs.
On one play, he dropped a perfect pass down the sideline from Charlie Batch. On the next play, seemingly the same pattern on the other side of the field, Holmes caught the pass.
Shane Boyd and Omar Jacobs ran the two-minute offenses, with neither leading their unit to a score.
In the second session, the defense gave Jacobs a little taste of crowd noise getting the fans in attendance to yell as well. The drill ended when Jacobs threw incomplete to Davis on fourth down from the 36.
Also, Rian Wallace's spot as the team's fourth inside linebacker is also in jeopardy from Richard Sielger, who has surpassed him on the depth chart.
Dale Lolley appears courtesy of the Observer-Reporter.