Vikings quarterback Brett Favre will start against the 49ers on Sunday night just a few days after deciding to rejoin the team. Coach Brad Childress said that Favre will likely play just a series or two. Childress said ideally the first series would go 10 plays for Favre because, "that's what he needs right now and all he's ready for right now." "I think he's doing a good job of rounding into," form, Childress said. "He has been throwing the football, there is no question about that. Just conditioning his legs. ... He's versed in our system and our calls."