Postgame snapshot from Mall of America Field where the Vikings beat the 49ers 24-13. Good news: In building a 17-3 halftime lead, the Vikings played nearly flawless football. There was Christian Ponder's encouraging poise, particularly early on. Ponder was 15-for-23 in the first half for 143 yards with a 1-yard touchdown pass on fourth down of the Vikings' opening drive. Ponder also escaped pressure to run for a nifty 23-yard TD in the second quarter. Defensive tackle Letroy Guion blocked a David Akers field goal late in the half. And Chad Greenway had two first-half sacks and eight tackles as the defense limited San Francisco to 121 total yards and 29 on the ground in the first half. Even better for the Vikings, they held up after San Francisco closed to within 17-13 in the third quarter, responding with an 86-yard touchdown drive that ended with a Ponder to Kyle Rudolph pass from 2 yards out. Bad news: On the injury front, starting safety Mistral Raymond left the game for good on the final play of the first quarter with what appeared to be a serious injury to his right ankle/leg. Raymond had his leg put in an air cast immediately and was carted off the field. We hope to have more details on the severity of Raymond's injury soon. Extra point: Rookie kicker Blair Walsh nailed a 52-yard field goal as the first half ended. It was Walsh's third consecutive game with a field goal from beyond 50 yards, setting a new team record. For the season, Walsh is now 7-for-7 on field goals and has added seven extra points. Next up: The Vikings will travel to Detroit in Week 4. This afternoon, the Lions were in Tennessee and fell to 1-2 with a loss.