Nikola Jokic remains "worried" about the Denver Nuggets' chances of reaching the NBA Finals despite Saturday's Game 3 victory over the Los Angeles Lakers, warning LeBron James is "capable of everything".

Jokic combined with Jamal Murray to guide the top-seeded Nuggets to a 119-108 win at Crypto.com Arena, giving them a 3-0 series lead and putting them on the brink of a first NBA Finals appearance.

The two-time NBA MVP added 24 points to Murray's game-high 37, leaving Denver heavily fancied to advance ahead of another road game on Monday.

However, Jokic is unwilling to start the celebrations early, saying: "To be honest, I'm not going to say that I'm scared, but I'm worried.

"Because they have LeBron on the other side, and he is capable of doing everything. 

"We're going to come here with the same mindset, same focus, and I think that's going to put us in a situation to win a game.

"We never know. They're going to be aggressive. Of course, they're going to be extra physical. 

"They're going to run more, everything is going to be on a different level, more of anything. So, we will see."

Murray echoed his team-mate's cautious tone, stressing the importance of the Nuggets remaining grounded. 

"We're just keeping everybody in the moment, not letting it slip away," Murray said.

"You need 16 wins to win a championship and we've got five more to go and the Lakers are in our way, and they are going to do everything in their power to come back and fight."

James finished Game 3 with 23 points, 12 assists and seven rebounds but missed with 11 of his 19 shots, including four of six in the fourth quarter.

Despite the Lakers' season hanging by a thread, the four-time NBA champion is refusing to give up hope.

"We've got to get one, just get one at a time," James said. "Just focus on Game 4, that's all you can think about. 

"Obviously, this game is over with. We had some opportunities and we didn't come through. It's a one-game series for us."