Wrong - he went out on the first play of the third series, a J Williams run that was stuffed for a 3 yard loss. This was after Rodgers had already been stripped sacked, which lead to a TD. Way to do your research though.
Meanwhile, the 49ers perennial all pro tackle, Joe Staley was out for the entire game, he will be there this Sunday. While Bulaga is a fine player, and is having a very good year, he is no stranger to the injury list, and has not had near the career that Staley has. To think he will be THE difference maker this Sunday is wishful thinking.