Jim Norton has some simple advice for Russell Westbrook in his war against heckling fans ... telling TMZ Sports if the Lakers star wants the trolling to stop, then he has to play better.
We spoke with the comedian -- who knows a thing or two about getting an earful from fans -- and he tells us the best way for Russ to shut 'em up is to elevate his game.
Of course, it's been a rough year for Westbrook in his first season with the Purple and Gold .