DURHAM, N.C. – Saint Louis earned its first trip to the NCAA Men's Soccer Championship quarterfinals in 18 years by knocking off Duke 4-3 Saturday night at Koskinen Stadium.
 
The 10th-seeded Billikens remained undefeated, improving to 16-0-4. They will face No. 2 seed Washington (16-1-2), which edged Indiana 3-2 in overtime Saturday afternoon, next weekend. The Billikens and Huskies will meet for a fifth time overall and first time since 2009.
 
Duke, the No. 7 seed, finished 14-5-1.
 
Saint Louis owned a 3-1 lead following goals by John Klein and Simon Becher in the 58th minute and 64th minute, respectively. Duke pulled even, however, with tallies in the 74th minute and 77th minute.
 
The Billikens earned the sixth of their eight corner kicks just moments after the Blue Devils equalized, and it paid off handsomely.
 
Isaiah Parker's service was headed toward the goal by Becher. Duke goalkeeper Eliot Hamill made the save, but he gave a rebound that was deflected by a nearby teammate into the net for an own goal and a 4-3 SLU advantage at the 78:06 mark.
 
The Billikens limited the Blue Devils to two shots, neither on goal, the rest of the way.
 
SLU took a 1-0 lead in the 18th minute when Mason Leeth took a long pass from Christian Buendia and drilled a shot past Hamill. It was Leeth's fourth goal of the season and Buendia's second assist.
 
The Billikens maintained the edge until the 54th minute when Thorleifur Ulfarsson equalized for Duke.
 
Saint Louis quickly regained the lead. After a Duke pass in the midfield was deflected deep into SLU's attacking end, Becher raced to retrieve the ball on the left flank and delivered a perfect cross to Klein, who beat Hamill's challenge. Klein notched his seventh goal, while Becher collected his 10th assist.
 
The Bills made it 3-1 when Becher narrowly beat a charging Hamill to the ball and tapped it past a sliding Duke defender. It was Becher's team-leading 14th goal of the season; Alex Shterenberg and Seth Anderson picked up their third and first assists of the year, respectively.
 
Patrick Schulte made four saves, including three in the second half.
 
Saint Louis has scored four or more goals in back-to-back NCAA tournament games for the first time since 1967. The Billikens defeated LIU 5-1 in this year's second round a week ago.