Jaylen Brown calls 'cap' on Jayson Tatum's recollection of stunning Celtics-76ers trade

Brown popped up in the Instagram comments of a clip from Tatum’s documentary

Brown popped up in the Instagram comments of a clip from Tatum Jaylen Brown appeared to take a shot at former teammate Jayson Tatum on social media late Thursday night, continuing a drama-filled start to the 2026-27 NBA season. Using the blue hat emoji, Brown called "cap" on Tatum's recollection of the stunning trade that sent Brown to the Philadelphia 76ers for Paul George and ended Tatum and Brown's nine-season run together with the Boston Celtics. In other words, Brown insinuated that Tatum is lying — though about what, specifically, is unclear. Tatum released the latest episode of his YouTube documentary series, "Summer of Jayson," on Thursday, and in it, he detailed his reaction to finding out about the trade.

Tatum was in Las Vegas at the time and had just come off the court from a workout when Celtics player development coach God Shammgod Jr. broke the news to him. "[Shammgod] handed me a towel," Tatum said. "He was like, 'Yo, put this over your face. Don't react. They just traded him.' I'm like, 'Oh, shit.' I'm like, 'Where?' He said, 'Philly.' I said, 'You traded him down the street?' So I was just as much caught off guard as the rest of the world." Bleacher Report posted the clip on Instagram, and Brown responded in the comments. Jayson