Furlong was drafted in the fifth round of the 2022 NHL Entry Draft (140th overall) and signed a three-year, entry-level contract with the Sharks on Thursday. The 19-year-old Halifax Mooseheads (QMJHL) captain had seven goals, 43 assists, 40 PIMs and a +47 plus/minus in 67 games in 2022-23 in the Quebec league. He has returned to Halifax for his 2023-24 season.