Greg Jennings is doubtful for the Green Bay Packers’ second game, tonight against the Chicago Bears. (Andy Lyons / Getty Images)

The Green Bay Packers will try to avert an 0-2 start tonight and may not have wide receiver Greg Jennings available.

Jennings, who suffered a groin injury late in the Packers’ loss to the San Francisco 49ers, is listed as doubtful for tonight’s NFC North game against the Chicago Bears. Jennings has not practiced all week.

“They put him through everything, testing in a number of different drills and then his endurance through the drill,” Coach Mike McCarthy told the Green Bay Press-Gazette on Wednesday. “I'll get the evaluation and then, frankly, [gameday] will be the deciding factor.”

Donald Driver would be ready to step in; he played only when Jennings was out Sunday.

“I didn't go into that game thinking I wasn't going to play,” Driver said. “The way it came out, I didn't. It [stinks], but that's the way it goes.”

Jennings, whose contract expires after the season, missed time in preseason after suffering a concussion. He has been, of late, a Bears killer. Over the Packers’ last six games against Chicago, he has caught 30 passes for 434 yards and three touchdowns.

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