The Chicago Bears are "cautiously optimistic" that Mitchell Trubisky will play Thursday against the Detriot Lions despite a shoulder injury.

The Bears are calling the quarterback "day-to-day." He injured his throwing shoulder on a late hit by Minnesota Vikings safety Harrison Smith near the end of the fourth quarter in last Sunday night's 25-20 victory.

Trubisky didn't practice on Tuesday.

"What's my sense [on whether Trubisky plays on Thanksgiving]? I'm saying cautiously optimistic but I can't make any promises," Matt Nagy said. "I hope he does. But it's a day-to-day thing for us, like I said. He wants to play. I know that. And for us, we got to make sure in these situations that we're doing the right thing."