Matthew Schaefer, an 18-year-old defenseman for the New York Islanders, has won the Calder Memorial Trophy, becoming the first player in 33 years to receive the award unanimously. The announcement was made during an interview on ABC's 'Good Morning America,' where Schaefer was surprised in the presence of his family and former Islanders player Matt Martin. Schaefer dedicated his win to his late mother, Jennifer, who lost her battle with breast cancer in 2024. He has also partnered with the Islanders Children's Foundation and Northwell Health to support cancer patients and their families. This season, Schaefer scored 23 goals and provided 36 assists, totaling 59 points, breaking the record for points by an 18-year-old defenseman previously held by Hockey Hall of Famer Phil Housley. His performance not only set new standards but also revitalized the Islanders, who were competitive for a playoff spot in the Eastern Conference. Schaefer's remarkable debut season has even placed him in discussions for a spot on Team Canada for the upcoming Winter Olympics.