Boston Celtics guard Marcus Smart and Cleveland Cavaliers guard JR Smith have been fined for their roles in an on-court altercation during Saturday's preseason game.

A scuffle broke out between the Celtics and Cavaliers on Saturday night, leading Boston's Marcus Smart to shove Cleveland guard JR Smith and say afterward, "Whatever happens happens. JR knows where I'm at."

Smart was fined $25,000 for escalating the altercation by shoving Smith from behind. Smart was assessed a technical foul and ejected with 3:38 remaining in the first quarter of the Cavaliers' 113-102 win.

Smith, who was also assessed a technical foul for shoving Boston forward-center Aron Baynes, was fined $15,000 for initiating the altercation.

Smith and Baynes became entangled in the paint, locking elbows and shoving each other.

Smart then got involved, coming toward Smith and pushing him. While a referee restrained Smith, Smart's teammates Jayson Tatum and Terry Rozier held him back -- or, in the case of Tatum, wrestled Smart to the ground.

Smith made a "chatterbox" motion with his hands, smiling, while Smart appeared to point away as he walked off the court.