How does this impact Boston's postseason hopes? More importantly, what does it do to the team's contention window in the short and medium term?

A week ago, a Celtics dynasty was plausible. They were -900 favorites against the New York Knicks before their second-round series began. That number is +400 on Caesars after Tatum's injury news. Just by virtue of playing in the Eastern Conference,

Jayson Tatum's torn Achilles will have a profound impact on the Boston Celtics, but it could also change the landscape of the entire NBA.