Allonzo Trier is best known for a college eligibility issue in 2018: Arizona said he was ruled ineligible after another trace of a banned substance showed up, tied to a prior inadvertent ingestion, and the school appealed the decision.

Quick scoop

The short version is that he did not disappear —his career just became a lot less visible after his college-to-pro path, with injuries and roster moves later affecting his NBA/G League trajectory.

What happened

  • In 2018 , Trier was ruled ineligible by the NCAA after a drug test found a trace amount of a banned substance. Arizona said it was a remnant of a substance he had unknowingly ingested earlier, and the school appealed.
  • He later entered the 2018 NBA Draft after Arizona’s season ended.
  • In the NBA, he had flashes with the New York Knicks , but his role never fully stabilized, and injury/roster changes limited his momentum.
  • More recently, reports show him back around the G League circuit, including a 2024 draft selection by the Rio Grande Valley Vipers and later game activity.

Why people still ask

Trier was a high-scoring, high-profile Arizona player, so the NCAA issue made headlines fast, and then his pro career became more stop-and-start than star- driven.

If you want, I can also give you a career timeline of Allonzo Trier in 5 bullet points.