 It's a big week for hockey and basketball fans, NHL and NBA free agency. The Boston Celtics making history after winning the championship. They're signing Jason Tatum to a record contract, five years, $314 million. And Boston Basketball Partners LLC, the majority ownership group of the Celtics, intends to sell the team. The managing board of the ownership group expects to sell a majority interest in 2024 or early 2025, with the balance closing in 2028.