The Illini meet Boston College, which advanced with another upset, Sunday afternoon in Lincoln.
Illinois rallied from a 3-1 deficit with 31 minutes to play and beat 7th-ranked Portland 4-3 Friday when Big Ten forward of the year Jannelle Flaws of Glenbrook South netted her second goal of the game in overtime.
It was the fifth game-winner and 23rd goal of the season for Flaws, tying her with Rachel Daly of St. John’s for the Division I scoring lead.
Penalty kick goals by Flaws in the 69th minute and Waubonsie Valley’s Vanessa DiBernardo in the 84th – her second goal of the game – sent it into overtime.
The Illini (11-8-3) dominated play, with a 24-11 shooting advantage (including a school record 14 shots by Flaws). They scored the most goals of any opponent this season against a Portland team that had allowed just 15 in its previous 20 games.
Boston College (12-9-1) scored a 4-1 rout of 10th-ranked Nebraska, the Big Ten regular season and tournament champion. The Eagles, one of eight Atlantic Coast Conference teams to make the Sweet 16, outshot the home-standing Cornhuskers 30-12.
No.23 Notre Dame (13-7-1) was among the other ACC teams advancing, with a 1-0 win over Western Michigan in Ann Arbor on freshman Cari Roccaro's goal in the 69th minute. The Irish play there Sunday afternoon against No. 11 Michigan, which beat Illinois State 3-0.