Marcus Smart Confronts Jayson Tatum On IG Live After Signing With The Lakers!

Marcus Smart vs. Jayson Tatum: A Shocking NBA Drama

“He was malnourished for sure…”
Marcus Smart has officially clapped back at Jayson Tatum—and it’s getting messy. Right after signing with the Los Angeles Lakers, Smart expected hate from Boston Celtics fans. But what he didn’t expect was Tatum throwing shade too.

Let’s break it all down.

How Marcus Smart Betrayed Boston

The summer of 2025 was supposed to be a rebuilding year in the NBA. But no one predicted that Marcus Smart, the heart and soul of the Celtics for nearly a decade, would join their greatest rivals—the Lakers.

This wasn’t just a free agency signing.
It was a betrayal.

Smart, who embodied Boston’s grit and work ethic, bled green for 9 seasons, won Defensive Player of the Year in 2022, and was beloved by Celtics fans. And now? He’s wearing purple and gold.

Boston fans are torn:

“Do we root for Marcus, knowing it helps the Lakers? Or do we root against him?”

Smart was drafted 6th overall in 2014 and played every season in the playoffs, including 5 trips to the Eastern Conference Finals. He gave his body, heart, and soul. But in 2023, he was traded to Memphis for Kristaps Porzingis.

Injuries plagued his time in Memphis and later in Washington, where he ended up in a rebuilding team with no playoff hopes. The Wizards bought out his contract in 2025, and that’s when Luka Dončić called—asking Marcus to join something “special” with the Lakers.

But of all teams—he chose the Lakers, Boston’s most hated rival.

Fans were furious.

One fan wrote: “Being a Celtics fan right now is hell.”

Even Celtics superfan Bill Simmons posted memes showing his heartbreak. Another fan said:

“It’s like breaking up with your girlfriend, then seeing her with your brother two weeks later… and he didn’t even tell you.”

Marcus Smart vs. Jayson Tatum: The Fallout

But the betrayal goes deeper than the team switch. The real drama?
Tensions between Smart and Tatum have been simmering for years.

Go back to November 1st, 2021. After blowing a 19-point lead to the Bulls, Smart publicly called out Tatum and Jaylen Brown:

“They don’t want to pass the ball… every team knows we’re going to Tatum and Brown.”

This wasn’t a private locker room conversation—it was a public ambush. Tatum later admitted on a podcast that he was caught off guard:

“It caught me off guard for sure… I didn’t expect it.”

Though team exec Brad Stevens tried to do damage control, the trust was broken. On paper, they kept working together. But behind the scenes, the chemistry changed.

Smart may have had valid points about the offense being stagnant, but it was clear he was also frustrated with his fading role as Tatum became the franchise player.

Even though Tatum later praised Smart publicly, it often felt rehearsed, not heartfelt.

What This Means for the Lakers (and Celtics)

Smart’s arrival in LA shakes up the championship picture. He brings:

Elite defense

Leadership

108 playoff games worth of experience

He’ll likely come off the bench, backing up Luka Dončić and Austin Reaves, but could be the defensive anchor the Lakers have missed since 2020.

However, Smart’s health is a wild card—he’s only played 54 games over the last two seasons. But he says he’s motivated:

“I’m itching… I’m like a dog on a leash, waiting to go.”

The Lakers-Celtics rivalry just got even more personal. Marcus Smart now joins a short list of only 42 players in history to wear both jerseys.

If the Lakers and Celtics meet in the 2026 Finals?

It might be Smart vs. Tatum—with legacies on the line.