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.

Boston Celtics forward Jayson Tatum told TNT Sports' Reggie Miller in a text that the torn Achilles he suffered Monday will not define him as he looks forward to returning to the court.

Boston Celtics star Jayson Tatum suffered a torn right Achilles tendon during Monday night's playoff loss to the Knicks, the team announced Tuesday. Tatum has already undergone surgery, and though an exact timetable for his return is not immediately clear, he is expected to miss a significant portion, if not all, of next season.