TERRE HAUTE, Ind. -- The Indianapolis Colts might consider other teams' castoffs because of injuries to their own linebackers.

Gary Brackett and Clint Session missed practice Thursday morning, and Session is expected to remain out for another week with a strained left calf muscle.

Brackett has been limited to one practice per day during the first week of camp as he recovers from offseason hip surgery. And he might have aggravated his previous injury during Wednesday's workout, although the Colts won't know his status for Sunday's preseason opener with Washington for a few days, coach Tony Dungy said.

"He's getting some tests run," Dungy said. "He injured something in his hip. I don't know if he got hit or if it's just been sore."

Session, meanwhile, also was hurt during the Wednesday night practice. He has been filling in with the first-team defense while projected starter Tyjuan Hagler recovers from a torn pectoral muscle. Hagler isn't expected back in the lineup until late September or early October.

Third-round draft pick Philip Wheeler might get the start at strong-side linebacker against the Redskins. Wheeler, though, has been bothered by a sore knee in recent days.

The lack of depth at the position might force the Colts to consider players who have been waived by other teams.

"We would like to bring one in to at least practice," Dungy said, adding that team president Bill Polian has also talked informally with former Colts linebacker Rob Morris, an eight-year veteran who was released by Indianapolis in February.

"I don't know exactly where it is, to be honest. I know Bill's had some conversations with him," Dungy said.

Morris has had some injury issues in the past, but that doesn't appear to be a problem now.

"He's a name to keep in the back of your mind, I would say that," Dungy said. "We're at the point now we got, we have six healthy linebackers. So we would look for a guy. You'd like to try to find a guy that knows what we're doing or something similar.

"We're looking around and see who that might be and then if you can't find anyone like that, then you just look for the best athletic guy you can find. But, you know, ideally it would be somebody who we could plug in and get going pretty quick."

Also sitting out Thursday's morning practice were running backs Dominic Rhodes and Kenton Keith, cornerback Tim Jennings (knee), defensive end Ben Ishola (foot), safety Melvin Bullitt (thumb) and rookie wide receiver Charles Dillon (foot).

Copyright 2008 by The Associated Press