Tavon Austin returned a punt 47 yards to set up Case Keenum's 4-yard touchdown pass to Brian Quick with 2:36 to play, and Los Angeles improved to 3-1 for the first time in a decade, adding to Arizona's early season woes with a 17-13 victory Sunday. The Cardinals (1-3), the reigning NFC West champions and expected to contend for the Super Bowl, have lost as many games this year as they did all of last season, and two of them have been at home. Now they head to a Thursday night game in San Francisco almost certainly without Carson Palmer, who left late in Sunday's loss to undergo the concussion protocol after his head was slammed to the turf on a sack by Aaron Donald. More...