SANTA CLARA -- Ray McDonald, who is being investigated on suspicion of felony domestic abuse, was a late arrival again for practice on Thursday. McDonald missed the very start of Wednesday’s session as well, but walked out of a second-floor office and onto the practice field 20 minutes into the session. He missed about 30 minutes of Thursday’s practice.
The Santa Clara County District Attorney currently is investigating the case and deciding whether to file charges against McDonald, who turned 30 Tuesday.
Meanwhile, Anthony Davis looks like he will miss his second straight practice with a hamstring strain. Jonathan Martin will start at right tackle if Davis can’t play. Michael Crabtree was back on the practice field after missing Wednesday’s session with a calf injury.
Starting cornerback Chris Culliver and No. 2 tight end Vance McDonald were added to the injury report on Thursday. Both were listed as limited participants.
Did not practice: C Marcus Martin, T Anthony Davis
Limited: WR Michael Crabtree (calf), CB Chris Culliver (ankle), TE Vance McDonald (hamstring)
Did not practice: WR Terrance Williams (back)
Limited: DE Georgie Selvie (shoulder)
Full participation: QB Tony Romo (shoulder)
Read Matt Barrows’ blogs and archives at www.sacbee.com/sf49ers.