No. 1 Northwestern (21-0) vs. No. 4 Pennsylvania (15-2)
When: Friday, 6:30 p.m.
Outlook: The Wildcats won the title last season, 10-6, over Penn, but the Quakers are the last team to beat the four-time defending champs, on April 27, 2008. The Wildcats have won 27 straight since. A goal-scoring machine, Northwestern needs just eight goals to break the Division I single-season record of 380 set last season by Syracuse. A lot of that offense starts with Hannah Nielsen (59 goals), the 2008 Tewaaraton Trophy winner who has an NCAA-record 75 goals this season as well as a career record 216. She had seven points in the regular-season 11-9 win over the Quakers. That was the Wildcats' fifth win in six meetings with Penn in three years, including three NCAA tournament wins. The Ivy League champs, led by Ali DeLuca (36, 14), average 10.93 goals per game compared with Northwestern's Division I-leading 17.76. Penn, however, allows just 5.76 goals per game, the best in Division I, while the Wildcats rank second (6.62).