McCarthy, however, was undecided on whether receiver Ruvell Martin would play. Martin, who sustained a concussion and bruised jaw during Monday's game against the Bengals, practiced in Thursday's no-contact workout.
Martin said he's feeling good, and added this wasn't his first concussion.
"The sport's a little too violent to have it be my first time," he said.
Martin said he "felt fine" after absorbing a questionable hit from the Bengals' Marvin White. "It wasn't a case of where I felt funny at all. I had to pass the test that they gave me. .... They look at stuff that I can't necessarily feel."
"I felt fine," he added, "though that didn't necessarily mean I was fine."
After Wednesday's practice, McCarthy said linebacker A.J. Hawk (chest) would not play, and strongly hinted he'd keep out running backs Ryan Grant (hamstring) and DeShawn Wynn (ankle). The usual suspects — defensive linemen Ryan Pickett (hamstring), Justin Harrell (back) and Kabeer Gbaja-Biamila (knee) won't play, either.
On Thursday, receiver Greg Jennings (knee) didn't sound like he'd play as a precautionary measure.
"This right here is just a matter of not turning it into something big," said Jennings, who is coming off a 12-touchdown season. "I could have played Monday. I can play Saturday. But why? That's the big picture. Being that I missed a regular-season game my rookie year, two games last year, there's no reason to risk a preseason game for the regular season."
Jennings doesn't want to make a habit of watching practice from the sideline, though.
"Just the way I am, I want to go out there," he said. "I don't want to be that guy who kind of takes practices off and goes out there on game day and plays. It's not setting a good example. ... I want to be one of those guys that comes to every practice."