The 49ers have just one practice session today. They began with a special teams practice and are now beginning a regular practice that will end at 1 p.m. Because he is the starter for tomorrow's game in Oakland, J.T. O'Sullivan is expected to get all of the first-team snaps.
The players who are definitely out of action tomorrow are Michael Robinson, David Baas and Lewis Baker. Bryant Johnson and Ashley Lelie probably won't play. Safeties Mark Roman and Dashon Goldson are going through individual drills, but Roman might be held ou tomorrow. Parys Haralson's (shoulder) status also is unknown. If Roman doesn't play, it'll be interesting to see who wears the radio receiver. It could be Patrick Willis or perhaps Michael Lewis, who rarely leaves the field.
Jonas Jennings, DeShaun Foster and Arnaz Battle had "old man" practices yesterday afternoon but are back in practice today.
Former 49ers cornerback Eric Davis will join Dennis O'Donnell in the booth for CBS 5's three preseason broadcasts. The only game not on CBS-5 this summer is the Aug. 21 in Chicago, which is at 5 p.m. on FOX.
-- Matt Barrows