After scoring 11 points in the first quarter of the Los Angeles Lakers' 116-108 loss to the New Orleans Pelicans, LeBron James suffered an ankle injury early in the second term that he called "horrible".

James ended up staying in the game, and went on to score 39 points on 14-of-27 shooting, but he admitted after the game that it was more serious than he hoped.

After scoring 69 points in the first half, the Lakers were a different side after the break, scoring just 39 points over the final two quarters while the Pelicans scored 41 in the third quarter alone.

Speaking to post-game media, James said he would have "probably not" finished the game if he did not feel it was a crucial fixture for his side.

"I have no idea how I finished the game after watching the replay, it was pretty nasty," he said.

"I lost all explosiveness… a lot of my game was on the perimeter after that. It's horrible right now.

"From the time that I turned my ankle I felt a sharp pain run up my leg and get hot, and I've been there with ankle sprains before, but I didn't want to come out of the game.

"I understood how big of a game it was for us."

James was blunt when describing how it felt to come up short in a game that was built up as a near must-win internally.

"It feels like sh** – excuse my language, but that's what it feels like," he said.

"I came in with the mindset understanding that it was a playoff-type atmosphere with playoff implications.

"We also have a lot of guys in our ball club who haven't played in playoff games as well… [New Orleans] have guys who have been in the postseason.

"It feels like a wasted opportunity."

Also speaking with post-game media, head coach Frank Vogel preached urgency as the playoffs rapidly approach.

"Time's running out on us – we came out with the proper urgency for this game, but weren't able to close it," he said.

"It's over, this game is over, and we have to turn the page to the next one.

"It's not good – it hurts, this was a big game – but we have to regroup and find a way to beat Dallas and get some wins down the stretch here."

On James' injury, Vogel said it was a brave effort to stick it out until the end.

"It's tough – it has been that kind of season, and [James] was in an incredible groove when it happened," he said.

"Credit to him for toughing it out – you could see that he was limited on it somewhat the rest of the way, but he battled through it."