Lakers guard Wayne Ellington just got slapped with a $20,000 fine by the NBA ... after he threatened to put his "hands on" Facundo Campazzo following an incident between the two during a game over the weekend.
NBA exec Byron Spruell announced the fine on Wednesday afternoon ... reprimanding Ellington for his threatening tweet.
If you missed it, during the Lakers vs. Nuggets game on Sunday, Campazzo intentionally shoved Ellington in the back -- sending him crashing to the floor.
At the time, Campazzo was assessed a Flagrant 2 foul and ejected from the game -- but Ellington clearly didn't think that penalty was enough ... 'cause he tweeted afterward he wanted some street justice.
"When I see you I’m putting my hands on you @facucampazzo," Ellington said.
In addition to fining Ellington for the tweet ... the NBA also said it's suspending Campazzo for one game without pay for the shove.
Campazzo will serve the ban on Friday ... when the Nuggets begin their playoff series against the Golden State Warriors.