Sacks, Penalties, Turnovers and Heartburn! Why is San Francisco the worst team against the spread (25%)? The Niners have allowed 34 sacks and they are -10 in their turnover differential. No matter what they do, those two fundamental anchors will always drag them down. In fact, the Niners are actually one of the better teams in the NFC on third down conversions (6th best), and they are 6 of 9 on 4th down conversions... Read more