Luka Doncic accepted responsibility for a Dallas Mavericks defense this season that their Slovenian star believes "anybody can score on".

There was plenty of positivity coming into the season after a surprise run to the Western Conference Finals in 2022, but things have failed to go according to plan.

But while the Mavericks sit 11th in the West with a 37-42 record – one game behind the 38-41 Oklahoma City Thunder in the race for the final play-in tournament spot – they still own the sixth-best offense in the league this season.

Scoring at a rate of 116.0 points per 100 possessions, the Mavericks trail only the New York Knicks (116.8), Denver Nuggets (117.1), Philadelphia 76ers (117.1), Boston Celtics (117.3) and Sacramento Kings (119.0) for the league's best offensive units.

But they also sit 23rd in defense, giving up 115.9 points per 100 possessions, although their stellar offensive play had been enough to keep their head above water prior to the All-Star break.

Since the break – and the trade for Kyrie Irving, where they sent away key rotation pieces Dorian Finney-Smith and Spencer Dinwiddie – the Mavs have gone 6-13, and while their offense has actually gotten even more efficient (117.5 points per 100 possessions), their defense has cratered even further (118.0).

Doncic called it "a very disappointing season", and pointed to the current group's lack of chemistry – particularly on the defensive end – as one of the main reasons for their late-season collapse.

"I think you don't see that chemistry we had before – I mean, especially last year," he said. "I think that chemistry was at the top, everybody. But chemistry builds not just not right away. It's a long process.

"I don't think the offense is a problem, and I always said this. It's our defensive end. I think anybody can score on us. Whoever it is, anybody can score on us."

But the former Rookie of the Year and three-time All-NBA First Team selection was not looking to point fingers. Doncic highlighted his own packed schedule over the past three years as he spent his offseasons playing for Slovenia internationally, and admitted his defense has reflected his level of fatigue.

"I've been playing basketball for three straight years," he said. "Four weeks in between it was free. 

"Sometimes it's really hard for me to play really hard on both ends. But obviously, the defensive end I gotta be way better. But that's not an excuse.

"I'm still young, age-wise, but it's a lot of basketball. But I've got to be way better. I'm the leader of this team – the one to blame is me."