DETROIT (AP) -The winless Detroit Lions placed quarterback Jon Kitna on the injured reserve Tuesday, ending his season.
The move could raise questions about Kitna's future in Detroit.
There had been speculation the Lions (0-5) might trade Kitna and rely instead on backups Dan Orlovsky and Drew Stanton. But a trade didn't materialize.
Kitna suffered a back injury in a loss to Chicago two weeks ago. He did not play last week against Minnesota.
Orlovsky played in Kitna's place against the Vikings. He likely will make his second career start at Houston on Sunday.
Kitna told The Associated Press on Monday he expected to play again this season. But Coach Rod Marinelli wouldn't answer questions about Kitna's health.
cago on Oct. 5.
Kitna had started 36 straight games until Orlovsky played in Sunday's 12-10 loss at Minnesota.
Orlovsky was 12-of-21 for 150 yards and a score. The fifth-round pick from Connecticut in 2005 also rolled out of the end zone for a safety.
Stanton has not played in the regular season as a pro.
Kitna had an MRI last week and was evaluated by a specialist, but had declined comment on his health.
Kitna had 4,000-plus yards passing in each of the past two seasons in Detroit and combined to throw 39 TDs and 42 interceptions.
He has thrown 152 TDs and 151 interceptions in 115 games for the Seattle Seahawks, Cincinnati Bengals and the Lions since making it to the NFL as an undrafted free agent in 1997.

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