49ers' Ray McDonald active

SANTA CLARA, Calif. -- San Francisco 49ers defensive lineman Ray McDonald, still under investigation after his Aug. 31 arrest for domestic violence, was among the 46 active players for the team's Levi's Stadium debut Sunday night against the Chicago Bears.

There had been speculation that with so many off-the-field negative news in the NFL this week -- from Ray Rice to Adrian Peterson to Greg Hardy -- that the 49ers might bow to public pressure and deactivate McDonald.

Not quite, and not with the Niners taking a public stance of defending "due process" from the beginning while the NFL Network tweeted that the "49ers (are) not hiding behind due process w/Ray McDonald. They believe his version. Will cut him if he's lying."

The 49ers did, however, suspend radio play-by-play man Ted Robinson for two games this week for comments essentially making light of domestic violence.

Meanwhile, and as expected, starting cornerback Tramaine Brock, who suffered a sprained big toe in last week's season opener at the Dallas Cowboys, was inactive.

Perrish Cox started in his spot, opposite Chris Culliver, who passed the NFL's concussion protocol in time to be active for the game.

Also, Joe Looney again started at right guard in place of Alex Boone, and Jonathan Martin started at right tackle, ahead of the inactive Anthony Davis (hamstring).

For the Bears, knicked up receivers Alshon Jeffery and Brandon Marshall were active. Marshall finished with three touchdown catches in the Bears' come-from-behind 28-20 victory.

Following are both team's inactives lists:

Bears: WR Josh Morgan, LB Khaseem Green, C Roberto Garza, G Matt Slauson, OT Charles Leno, DE David Bass, DE Cornelius Washington.

49ers: QB Josh Johnson, WR Quinton Patton, CB Tramaine Brock, C Marcus Martin, OT Anthony Davis, DT Demarcus Dobbs, WR Brandon Lloyd.