Allen Park — Lions right guard Larry Warford left Sunday's loss to the Packers on a cart, but he's still hopeful he can return this postseason.

Whether or not Warford will be back for next Sunday's wild-card matchup against the Dallas Cowboys, though, remains unknown.

Warford, the Lions' top offensive lineman, suffered a left knee injury against Green Bay, and as the team prepares for its opening-round playoff game, he has one thing on his mind.

"Hopefully get my knee better," Warford said Monday. "Whatever they say. If I'm ready to go or not, it's up to them. It's day to day."

Day to day is an optimistic outlook based on how Warford exited the game, walking gingerly toward the trainer's table in the second quarter and heading to the locker room shortly thereafter, but the Lions still think there's a chance he'll play against the Cowboys.

"Not ruled out at this stage, but not certain yet," coach Jim Caldwell said. "We'll have to see."

Warford declined to provide further detail on his injury Monday. He missed three games earlier this year with a left knee injury, too, and has played well in the four games since he returned.

Even though Warford, a third-round pick in 2013, wants to play in his first playoff game, he said he'll only play if he can play like himself.

"I wouldn't say push myself because if I'm in there and I'm not full go, how is that helping anybody?" he said. "I'm putting myself at risk and I'm not helping my teammates, so it wouldn't be smart regardless."

The Lions practice for the first time Wednesday, and his participation will provide an early indication of his potential availability.