updated 7:26 p.m. ET Nov. 7, 2008

LAKE FOREST, Ill. - Chicago Bears quarterback Kyle Orton practiced Friday for the first time since getting injured, but an appearance in Sunday’s game at Soldier Field against the unbeaten Tennessee Titans appears unlikely.

Orton, who sprained his right ankle last Sunday against the Detroit Lions, was doubtful on the official injury report after working out Friday only during individual passing drills.

“I can’t go that far,” Bears coach Lovie Smith said when asked if Orton’s first practice meant he could start Sunday. “He’s making progress. This is the first day where he’s actually able to do anything, so making progress. Beyond that I don’t know.”

Rex Grossman, who finished last Sunday’s game, is the likely starter against Tennessee.

Four players who missed all or part of last Sunday’s game with Detroit went through a full practice Friday and were listed probable: safety Mike Brown (calf), linebacker Hunter Hillenmeyer (thumb), receiver Brandon Lloyd (knee) and defensive back Danieal Manning (hamstring).

Cornerback Charles Tillman practiced on a limited basis Friday due to a shoulder injury and is questionable for the game.

Also on NBCSports.com   Video: Legends say Federer greatest of his generation Curran: McNair — tough, talented, great  |    Images Ventre: Artest puts everything in jeopardy for Lakers Blyleven: Days of .400 hitter are dead and gone   NFL video: How to build the ultimate offense

MORE FROM NFL

NFL Section Front

Police rule ex-QB McNair’s death a homicide PFT: Woman's family thinks third person involved Curran: Tough, talented — McNair lived up to the hype   Slideshow: McNair's career highs, lows PFT: McNair's ex-teammates bemoan his loss PFT: Shock, sadness at McNair's death McNair brought big-time football to Alcorn St. Discuss: How will you remember Steve McNair? PFT: Favre not so popular in Vikings' camp? PFT: Giants not worried about Manning deal NFL Section Front   Add NFL headlines to your news reader: