The Chiefs weren't the only team with extra-point troubles last weekend. Raiders kicker Sebastian Janikowski doinked a ball off an upright, and there were a total of nine missed PATs in the NFL last weekend. There were eight all of last season.
Eight teams are perfect on extra points this year, which aren't as automatic now that they're booted from 33 or 34 yards. Last season, six teams missed a PAT.