DALLAS -- Mavericks general manager Nico Harrison says he miscalculated the depth of love his club's fans had for Luka Doncic before the trade that sent the young superstar to the Los Angeles Lakers for Anthony Davis.

Despite the persistent catcalls from fans for him to be fired in the 2 months since the deal, Harrison still believes it was the right move for building a championship contender in Dallas.

"I did know that Luka was important to the fan base," Harrison said Monday during his season-ending news conference, six days after a session with a smaller group of reporters that the club called to try to move on from the exhaustively discussed Doncic trade. "I didn't quite know it to what level."

As he has said before, Harrison expected plenty of blowback from the trade but thought it would have eased sooner if Davis had been able to play with Kyrie Irving, Klay Thompson, P.J. Washington and Dereck Lively II for most of the rest of the season.

Instead, those five haven't played together yet, and the star combo of Davis and Irving shared less than three quarters together before Davis injured a groin in his Dallas debut. Irving tore the ACL in his left knee while Davis was out.

"We feel that's a championship-caliber team and we would have been winning at a high level, and that would have quieted some of the outrage," Harrison said as part of the same answer about the fans' love for Doncic. "And so, unfortunately, we weren't able to do that, so it just continued to go on and on."

The Mavericks almost didn't have enough players to meet the NBA's minimum requirement for several games while Davis was sidelined. Once he returned, the Mavs steadied themselves and qualified for the final spot in the Western Conference play-in tournament at No. 10.

Dallas won at Sacramento for a shot at the eighth seed in the playoffs before losing at Memphis.

Harrison said he believes the Mavs will get a good player in the first round of the draft, where they are slated to pick 11th. He also didn't rule out changes in free agency.

But when asked what Dallas must do to become a contender again, Harrison said, "Really, we just need to get healthy. I think the team we're bringing back is a championship caliber. We fully expect to have Kyrie back with us next year when he gets healed from his injury. And we believe we'll be competing for a championship."

After Harrison said repeatedly last week that "defense wins championships" while defending the trade, Doncic was asked by ESPN his reaction to the session, saying that the GM's comments were "sad" and that he wanted to move on.

Harrison, who said last week that he still hadn't spoken to the five-time All-NBA player who led the Mavericks to the NBA Finals last season, was asked about that exchange and said, "I feel the same way he does. I've actually never spoken ill of Luka, and I'm just ready to move on with this team that we have."