The Nittany Lions did not allow a single goal in the entire weekend series.
Penn State could not squeeze out a win on the road.
Penn State starts conference play with another sweep, their fourth of the season.
It's the first Penn State loss in Ann Arbor since 2016.
Penn State women's hockey is undefeated in conference play through seven games this season.
In her sophomore year, Merkle averaged 15.5 points per game and 8.6 rebounds