GRAND RAPIDS, Mich. -- Jesse Root scored 9 seconds into overtime to give fourth-seeded Yale a 3-2 victory over top-seeded Minnesota in the NCAA West Regional semifinals Friday.
Kenny Agostino intercepted Minnesota defenseman Ben Marshall's pass behind the net and feed Root for his 10th goal of the season.
"It was a good forecheck by Kenny," Root said. "He stole the puck from the guy and passed it to me."
Marshall tried to swing the puck along the boards.
"Kenny put a lot of pressure on the guy and took the puck," Yale coach Keith Allain said. "He got him on a good angle and I knew (Marshall) was in trouble."
Yale (19-12-3) will play North Dakota in the regional final Saturday for a spot in the Frozen Four in Pittsburgh.
Minnesota, the No. 2 overall seed in the 16-team tournament, finished the season 26-9-5.
"I feel bad for our guys," Gophers coach Don Lucia said. "It's a one-shot deal, I didn't see what happened. It happened so quick. I guess that's why they call it sudden death."
Minnesota overcame a 2-0 deficit in the third period, cutting it to one on Nate Schmidt's power-play goal and tying it on Zach Budish's goal with 6:20 left.
Agostino opened the scoring in the second period with his 16th goal of the season, and defenseman Gus Young made it 2-0 with a power-play goal in the period.
"It was a tremendous team win," Allain said. "Our guys played as well as they could. ... You have to get your nose bloodied sometimes to see how you respond. I think you saw how we responded."
Jeff Malcolm made 27 saves for Yale, and Adam Wilcox stopped 23 shots for Minnesota.
North Dakota 2, Niagara 1
Andrew MacWilliams and Danny Kristo scored in a 57-second span early in the third period in North Dakota's comeback victory over Niagara.
MacWilliams tied it with an unassisted goal, his second goal of the season, at 1:56 of the third, and Kristo put second-seeded North Dakota (22-12-7) in front at 2:53 with his 26th goal.
Jason Beattie scored for the third-seeded Purple Eagles (23-10-5) in the second period.
Zane Gothberg made 28 saves for North Dakota, and Carsen Chubak stopped 41 shots for Niagara.
UMass-Lowell 6, Wisconsin 1
MANCHESTER, N.H. -- Connor Hellebuyck stopped a first-period penalty shot and finished with 31 saves to help UMass-Lowell rout Wisconsin.
Joseph Pendaza, Christian Folin, Shayne Thompson, Derek Arnold, Adam Chapie and Ryan McGrath scored for the top-seeded River Hawks (27-10-2). They will play New Hampshire on Saturday in the regional final.
Nic Kerdiles scored for fourth-seeded Wisconsin (22-13-7) in the third period, ending Hellebuyck's shutout streak at 165 minutes, 20 seconds.
New Hampshire 5, Denver 2
Casey Thrush scored twice and New Hampshire rallied to win.
The Wildcats (20-11-7) will play Hockey East rival UMass-Lowell on Saturday for a spot in the Frozen Four in Pittsburgh.
Trevor van Riemsdyk, Dalton Speelman John Henrion also scored for New Hampshire, which was outshot 19-14 in the first period then played stifling defense over the next 40 minutes.
Casey DeSmith finished with 31 saves for New Hampshire.
Daniel Doremus and Quentin Shore scored for the Pioneers (20-14-5), who had only 14 shots in the final two periods.