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,

The Celtics star spoke out on social media on Wednesday for the first time since tearing his right Achilles tendon in Monday’s Game 4 loss to the Knicks.

Fortunately, few know exactly what Celtics superstar Jayson Tatum is going through after rupturing his Achilles tendon in Game 4 of the East semifinals against the Knicks. One member of the Red Sox does.