The Boston Celtics star was ruled out for the rest of the playoffs with a torn right Achilles tendon, the team announced. Tatum underwent surgery on Tuesday, less than 24 hours after he initially sustained the injury. A timeline for his return is not yet known, but he is expected to make a full recovery.

Speaking ahead of Game 5 of the Eastern Conference Semifinals, Joe Mazzulla mapped out the Celtics' mindset after Jayson Tatum's injury.

During an appearance on ESPN's "NBA Today," NBA insider Marc J. Spears shared details of an emotional conversation between Tatum and his father following the devastating injury. According to Spears, Tatum asked his father, "Why me, dad? Why me? Why does this have to happen to me?"

Jayson Tatum's heart-wrenching conversation with his father, Justin, immediately after he went through his Achilles injury, was shared by an NBA insider.

Jayson Tatum heard it all after the Celtics blew Game 2 to the Knicks. After a bounce-back performance, he spoke about the perspective needed when it comes to being Boston's top player.

Meanwhile, Tatum, who is 12 for 43 in this Knicks series overall (including 5 of 20 from 3), has missed eight of 10 shots and all four of his 3-pointers in 19 clutch minutes so far in this postseason. It's an extension of a regular season in which he shot 6 for 31 from 3 and just 65% from the free-throw line during clutch minutes.

The NBA playoff picture took a significant turn with the reigning champion Boston Celtics losing Jayson Tatum to a torn Achilles in Game 4 of the Eastern Conference semifinals.