The Sixers were without Michael Carter-Williams for the third consecutive game, out with a foot injury. The team does not expect Carter-Williams to play tonight. The rookie is the Sixers' second leading scorer at 17.4 points per game and is averaging 36.6 minutes per game.
New Orleans' Anthony Davis had 13 points, nine rebounds and a career-high eight blocks. The Pelicans shot 60.5 percent from the field.
"There were so many blocked shots, it was similar to a volleyball game," Brown said.
Thaddeus Young, who had 11 points, said the Pelicans "just did whatever they wanted to tonight."
The Sixers' three-game road trip started with a 113-102 loss to Atlanta. Evan Turner scored a team-high 27 poings and Tony Wroten had a career-high 22 points.
The Mavericks are 6-4 and 4-0 at home. After tonight's game, the Sixers return home on Wednesday to play Toronto.
"It's life in the NBA, you got to back it up," Brown said. "We go down to Dallas. We've got to stay healthy and take care of our bodies. They're a good team.
"This is a long year. Come hell or high water, my mission is to keep us together, keep us moving forward, continue to improve, show them what they did well, show them what they need to improve on and move on."