Apr 08, 2021; Pittsburgh, PA, USA; Apr 8, 2021; Pittsburgh, PA, Minn. Duluth Bulldogs goaltender Zach Stejskal (35) looks on during a time-out against the Massachusetts Minutemen during the second period in the semifinals of the 2021 Frozen Four NCAA hockey tournament at PPG Paints Arena. Mandatory Credit: Charles LeClaire-Imagn Images; Mandatory Credit: Charles LeClaire-Imagn Images