Speaking on the stage at Thursday's parade celebrating the Warriors' championship, Green pinned the start of the superteam trend on James.
"They want to talk about superteam this, superteam that, 'I never played on a superteam,'" Green said. "You started the superteam, bro!"
"LeBron said he'd never been on a super team," Green later told USA Today's Sam Amick. "As KD said before, (James) showed everyone it was possible to do that. And so, it wasn't that (what James said) didn't sit well with me. It didn't bother me, but let's just be clear. It was very surprising, because like I said, he was the one who opened the door for that. So let's just be clear about it."
Thursday was filled with trash talk between James and Green, whether it was in front of microphones or on social media.
Green initiated the banter when he showed up to the championship celebration wearing a shirt featuring the word "Quickie," with the Q highlighted in reference to the Cleveland Cavaliers' home floor:
James promptly responded with a post on Instagram, complete with the caption ".... That's what she said, HUH?!?!?":
Green told CSN Bay Area the shirt was made as a joke and that he and James are on good terms. However, he said he felt the need to respond after LeBron rocked a shirt that said "Ultimate Warrior" following the Cavaliers' Game 7 win a year ago.
"I can't forget the Ultimate Warrior shirt from last year from LeBron, and the 3-1 tombstone cookies and all that," he said. "I was waiting on this moment, but definitely my guy. That's family."