A week after helping guide the University of Denver hockey team to its 10th national title, juniors Massimo Rizzo and Shai Buium signed entry-level contracts with NHL franchises. Rizzo inked a two-year deal with the Philadelphia Flyers, while Buium agreed to a three-year pact with the Detroit Red Wings that starts in the 2024-25 season, the teams announced on Wednesday, Rizzo, 22, was the Pioneers’ No.