Anthony Davis says the injury-hit Los Angeles Lakers are "starting to realise how good of a team we are" after they beat the Miami Heat 120-117 in overtime on Wednesday.

Russell Westbrook posted a second consecutive triple-double of 25 points, 12 rebounds and 14 assists, while Davis scored 24 points and claimed 13 rebounds at Staples Center.

Malik Monk also played a big hand, finishing with a team-high 27 points - including five of the Lakers' eight points in overtime as they moved to 7-5.

Justin Reaves and Rajon Rondo (both hamstring) joined LeBron James (abdominal strain) on a lengthy Lakers injury list, but Davis says confidence is building in adversity following a second straight overtime win.

"Trying to find ways to get wins while everyone is getting back healthy," Davis said.

"The last two games have definitely been fun. Guys are having fun. Guys are starting to realise how good of a team we are."

Monk relished the opportunity to make a big impact after starting on the bench.

"I had this role a couple of times last year in Charlotte, the year before that when a lot of guys get hurt and I had to come in and play big minutes and facilitate and do other things that I normally don't do," he said.

"But I work on my game a lot, so I was really prepared for this moment."

Lakers coach Frank Vogel revealed that Reaves and Rondo had only suffered minor injuries and are both day-to-day.

Double-doubles from Bam Adebayo (28 points, 10 rebounds, six steals and four assists) and Kyle Lowry (18 points and 11 assists) were in vain for the Heat (7-4), who lost Jimmy Butler due to a sprained ankle.