History Lesson: Playoffs on the line

The Cardinals need a win to keep their playoff hopes alive.

Series: 49ers lead 27-17.

Last game: Oct. 13, 2013 -- 49ers 27, Cardinals 21.

First game: Nov. 18, 1951 -- Cardinals 27, 49ers 21.

Streaks: 49ers have won eight of last nine.

Cardinals at home vs. San Francisco: 9-12.

Since ... losing to San Francisco on Oct. 13, Arizona has scored 21 or more points in every game with the exception of last Sunday at Seattle.

You should know: Arizona's last win over San Francisco came in December and the Cards' last two wins over the Niners have come at University of Phoenix Stadium.