J.R. on Smart altercation: 'You can't flop as much as you do and then be tough'

J.R. Smith had a giant smile on his face as Boston Celtics guard Marcus Smart lunged at him in a fit of rage late in the first quarter of Saturday's preseason matchup at Quicken Loans Arena.

The Cleveland Cavaliers veteran thought better of retaliating after Smart pushed him from behind, which resulted in Smart's ejection. Smith admitted after his team's 113-102 victory that responding wouldn't have been worth the potential fine.

Related - Watch: Smart ejected after shoving J.R. from behind in Celtics-Cavs scuffle

"For a guy who wants to be so tough in this situation, he leads the league in flops," Smith said, according to NBC Sports Boston's Chris Forsberg. "You can't flop as much as you do and then be tough. How does that even work. And then you start slinging your teammates. Like, you didn't come to play basketball today. You knew what, he didn't want to play.

"Your coach told you you gotta play and you was frustrated, and then you try to take it out on somebody else. At the end of the day, I'm not going to sit here and lose money over trying to fight Marcus Smart. I'm not going to lose money over my tattoo, so why would I lose it over him."

Smith appeared to change his stance after hearing Smart's postgame comments, tweeting out that Smart should meet him on the street.

Related - Smart called J.R. to meet him in the back after scuffle: 'Ain't no punk right here'