The Los Angeles Lakers beat the Golden State Warriors 112-95, handing the league's top team just their sixth loss of the season in one of the biggest upsets in NBA regular-season history.
Stephen Curry and Klay Thompson struggled offensively, shooting a combined 13-for-40 from the field and just one-for-18 from three-point range - the duo's worst combined three-point shooting game as team-mates.
Conversely, the Lakers' young backcourt played a brilliant game as Jordan Clarkson scored 25 points on 10-for-21 shooting and rookie D'Angelo Russell added 21 points.
Kobe Bryant contributed 12 points in 24 minutes.
The loss continued an interesting trend for the Warriors.
Only two of Golden State's first six losses have come to teams currently in the top eight in the Western Conference, as the Dallas Mavericks and Portland Trail Blazers sit sixth and seventh respectively.
The Milwaukee Bucks, Denver Nuggets and Detroit Pistons are all on the outside looking in at the play-off picture.
"We always talk about 'this is the NBA'," Warriors coach Steve Kerr said after the game. "The other guys make millions of dollars to play too, they're obviously very good at it. "
The loss to the Lakers was probably the most embarrassing, since they have lost almost as many games (51) as the Warriors have won (55) and currently sit at the bottom of the Western Conference.
The Lakers entered with a .190 win percentage, compared to .917 for the Warriors - the biggest differential between two opponents in NBA history.