Niners Hope Defense Can Fix Leaks by Sunday

Two weeks ago the 49ers defense held the Seahawks to 12 points. Last week, the Niners were shredded for 41 points by the Rams.So which defense will show up this Sunday in Arizona when the 0-3 49ers take on the 1-2 Cardinals?Coordinator Robert Saleh believes it will be the unit that contained Seattle in Week 2, not the group that gave up 418 yards and four long touchdown drives in Week 3. With the extra time for preparation from that Thursday night game, Saleh says the 49ers defense has been regaining its focus on the basics."It goes back to fundamentals and the things that we always talk about," Saleh told reporters this week. "I felt like we let a few things get away from us from a technical standpoint. Even myself, going back and evaluating us as coaches from a defensive standpoint, what we could've done better from a play-calling standpoint."The Cardinals come into the game with the 11th-ranked offense in the NFL, averaging 343 yards per game. Arizona's rushing game, which has been strong in the past, is suffering because of inconsistent play by the offensive line and an injury to star David Johnson, who went down in Game 1. But the air attack is flying and ranks third in the...