It's here ... the last week of the Division I volleyball regular season. As always, several traditional rivalries will play out, some of which may have NCAA tournament implications. Here are five things to take note of this week in the world of kills, blocks and digs.

1. Can Stanford stay perfect?

The Cardinal (28-0) have two matches left before the NCAA tournament, including the Pac-12 showdown everyone has been anticipating all season. That's Wednesday, when No. 1 Stanford faces No. 5 Washington in Seattle (8 p.m. ET, Pac-12 Network).

The Huskies were undefeated as well until they fell Nov. 13 at Colorado, followed two days later by a loss at Utah. Even though this won't be a meeting of unbeatens, it should still have plenty of drama.

Stanford, which has been in the top spot in the American Volleyball Coaches Association rankings since Sept. 8, faces Bay Area rival Cal on Friday in Berkeley. This year, though, the Bears aren't likely to put up much of a fight. Cal is 9-19 overall and 1-17 in the Pac-12. That said, that match will be the season highlight for Cal, which Stanford no doubt realizes.