Michael Lewis, who walked away from the 49ers in early October, has been helping the Rams prepare for this Sunday's game against his former team. "Of course, because I was the starting strong safety there," Lewis said when asked if he has offered insight to his new teamamtes. "I pretty much know the defense. We've talked." Lewis lost his starting job to Taylor Mays. "It's not a personnel vendetta, going out there trying to hurt somebody, or doing something like that," Lewis said when asked about playing his old team. "If I'm 'up,' I'm out there trying to help this team win a game."