Apr 08, 2021; Pittsburgh, PA, USA; Apr 8, 2021; Pittsburgh, PA, Minn. Duluth Bulldogs defenseman Connor Kelley (25) skates with the puck against the Massachusetts Minutemen during the first 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