Marilu Henner stepped into the leading role in the Broadway Chicago revival June 24 -- but apparently stepped the wrong way. Claiming a hurt foot, Henner missed the June 25 matinee and is scheduled to miss the June 25 evening performance as well.

"She's been having foot problems," said production spokesman Pete Sanders. "There's a problem with her shoe."

Understudy Nancy Hess is subbing for Henner. Sanders did not know whether Henner would return for the June 26 show, because "injuries are always day-to-day."

Henner previously appeared on Broadway in 1974's Over Here! at the Shubert Theatre; her co-stars included John Travolta and Ann Reinking. She is perhaps best known to general audiences for her stint on the TV sitcom "Taxi."

Gregory Jbara, recently in Victor/Victoria, also made his debut in Chicago June 24, temporarily replacing Tony winner James Naughton, who is taking six weeks to direct a show at the Williamstown Festival in Massachusetts. Henner is the new Roxie Hart, permanently replacing Ann Reinking, who also choreographed the show. Reinking, whose Bob Fosse-inspired choreography for the show was nominated for a Tony Award, left Chicago June 22 to head to Tampa, FL to oversee the Broadway Theatre Project summer camp, for which she serves as artistic director.

Other shows on Jbara's resume include Born Yesterday and Serious Money on Broadway, and a stint in Forever Plaid Off Broadway. He can also be seen as the pre-operative transsexual, Angelique, in the film version of Paul Rudnick's Jeffrey. He'll work with Rudnick again on In And Out, a new Paramount film due in September. Jbara co-stars with Kevin Kline in the comedy, directed by Frank Oz (Little Shop Of Horrors).