Kesselring tied it 1-1 at 3:18 of the second period, beating Luukkonen top corner from the high slot.
"Scored a big goal, he skated well," Tourigny said of Kesselring. "He skated the puck out of trouble a few times and I like the fact he did not try to complicate his game a lot. And on the other side of the red line, I think he did a good job."
Mikhail Sergachev made it 2-1 for Utah 24 seconds later on a wrist shot from the left point. Luukkonen was out of position after Sabres defenseman Dennis Gilbert knocked Michael Carcone into the goalie.
Nick Schmaltz, who had what appeared to be the game's opening goal overturned in the first period after a coach's challenge for goaltender interference, put Utah ahead 3-1 at 19:08. Luukkonen made an acrobatic save on Schmaltz, who was on the doorstep to push in the rebound.
"I think we just stayed on them, and we managed the puck pretty well," Kesselring said of the second period. "Took advantage of our chances and kind of got the momentum and kept it."
Jack McBain extended it to 4-1 at 2:11 of the third period. Logan Cooley drove down the left side before centering a pass in front to McBain, who lifted it over Luukkonen.