Anthony Davis revealed he was dealing with groin tightness as the Los Angeles Lakers scraped past the New York Knicks for a big overtime win on Tuesday.

Davis missed more than two months with an Achilles issue but has crucially featured in all 11 games since his return last month, helping a Lakers team hit by a number of injuries.

LeBron James remained out – instead an active cheerleader on the sidelines – as the defending champions defeated the Knicks 101-99 at Staples Center.

Davis had 20 points but was clearly moving uneasily in the closing stages. He stayed in the game, though, with 43 minutes his most since early February.

"I'm hurting," he said afterwards. "There's nothing worse on my body, just my groin got tight. That was really it, I'm not sure where it came from, but my groin got a little tight.

"There was no way I was coming out of the game. It was a big game for us. The team was playing real hard, the situation that we're in, trying to battle for the six.

"It was a big game for them, trying to battle for fourth, trying to keep that fourth seed – I think they might be sixth now after the loss, I'm not sure.

"It was a huge game for us and I didn't want to come out, no matter injury, and finish the game and make sure we secure the win."

The Lakers are quickly back in action against the Houston Rockets on Wednesday and in need of another victory, still sitting seventh in the West – in an unwanted play-in place – but now just 1.0 games back from fifth.

"I'm not sure about tomorrow. I'm going to get treatment and see how I feel," Davis said. "I want to say I'm going to play, but it was really bothering me tonight.

"We'll see how I feel tomorrow and then later on in the day.

"There's a very strong possibility that I fight through it and play since the next day's an off day, but also I don't want to have it lagging and then I'm out for a couple of games. We'll see how I feel."

Regardless of Davis' status, there is the possibility James returns against the Rockets.

Having won back-to-back games for the first time since late March, the Lakers could now have some momentum heading into the postseason.

"It's good. It's a confidence booster for us," Davis said. "We've been playing well as of late.

"If [James] comes back tomorrow, we can get him back acclimated with the team and get him back in the rhythm. If he doesn't then he doesn't, but we want him to get healthy first and foremost, get ready for the playoffs.

"I'm not sure what he's going to do – that's none of my business, I just want him to get health – but my job is just to come out here and help this team.

"If he is able to come back tomorrow, it's our job to get him back into a rhythm to get him ready for playoff mode, which we know he'll be ready for."

Talen Horton-Tucker hit the game-winning three among eight overtime points, but the Lakers only reached that stage thanks to Davis' suffocating defense.

The Knicks had the lead and the ball in the final 30 seconds of regulation, only for Davis to brilliantly stop All-Star Julius Randle (31 points) and force a shot-clock violation.

"Julius, that's my guy," said the Lakers superstar, who guarded Randle throughout the closing stages. "I played with him in New Orleans and he's definitely developed his game, with his shooting ability and off the dribble.

"That last possession, I just had to lock in defensively and make sure that he wasn't going to score to help the team.

"I feel like I made him hit the three with my contest at the end [in overtime] – he shot it a little higher than normal.

"He's been playing like this all year. I think he's an MVP candidate, he for sure should win Most Improved, what he's doing, got this team in the playoffs right now for a team who hadn't been in the playoffs for a while.

"He's playing his a** off and you can do nothing but respect him."