LeBron James says he is "not worried at all" about Russell Westbrook after he suffered first-game jitters in a losing Los Angeles Lakers debut on the opening night of the NBA season.

Westbrook cut a disconsolate figure following a tough bow as Stephen Curry inspired the Golden State Warriors to a 121-114 victory at Staples Center on Tuesday.

Nine-time NBA All-Star Westbrook finished with only eight points, five rebounds, four assists and four turnovers in a debut that did not go to plan.

James, who got his season under way with a double-double of 34 points and 11 rebounds, has no concerns about Westbrook following such a disappointing bow for the 2017 MVP.

"I think it was just first-game jitters. I don't put too much into it," James said of Westbrook's performance. 

"There was a lot going through his mind, being a kid from LA and watching the Lakers growing up, then however many years down the road now you're putting on a Laker uniform, you're stepping into Staples Center.

"I can only imagine how many friends and family have contacted him in the last 48 hours wondering if they can come and see his first game as a Laker. Those demands will quieten down as the season goes on, so I'm not worried about Russ at all. He just needs to worry about himself and not worry about the outcome."

James revealed he told Westbrook not to dwell on his below-par display.

He said: "I told Russ just don't be so hard on yourself, it's one game. That's the one thing I tried to get through to him. Go home and see the three babies that he has.

"They might be asleep, but it will put a smile on his face. He can go home and see a beautiful wife and family and realise it's not that bad."

Curry put up a triple-double of 21 points, 10 assists and 10 rebounds in a great start to the campaign for the Warriors.