Lamar Odom — FINISHED in Dallas

Stick a fork in Lamar Odom … “cause he”s officially DONE in Dallas.

Odom released a statement explaining he will “step away from the team” … effective immediately.

He added, “I”m sorry that things didn”t work out better for both of us, but I wish the Mavs” organization, my teammates and Dallas fans nothing but continued success in the defense of their championship.”

According to ESPN, Odom will leave the team ASAP … but he will not be cut.

Instead, Odom will be listed as “inactive” for the rest of the season … which means he could still be traded after the season.

Odom has been downright atrocious this season — he”s put up career low numbers and just hasn”t appeared motivated on the court.

Sucks even worse for his wife Khloe Kardashian … because the couple had just leased a condo in Dallas and had planned to begin shooting footage for the family reality show.