Six games into the season, Rogers was suspended for testing positive for a banned substance and, during the four-game suspension, he had arthroscopic knee surgery.
The suspension was over after the Nov. 19 game at Arizona, but Rogers apparently is not yet close to making a comeback from the knee surgery.
"His knee's not healthy," coach Rod Marinelli said Monday. "We went out and worked him last week and it swelled up.
"He went out, worked out, biked on it hard and all those things. His knee blew up, and you can't put a guy out there like that."
Marinelli said the Lions probably will test Rogers and the knee once more this week, but if there is not noticeable improvement, it is likely Rogers would go on injured reserve.
In the first six games of the season, Rogers had three sacks but he also had some unproductive games, an indication of the problem he was having with his knee even then.