Cavaliers, GM part ways.

David Griffin’s run with the Cleveland Cavaliers is over after one championship and three straight trips to the NBA Finals.

The general manager and team mutually parted ways on Monday when owner David Gilbert said Griffin’s contract will not be extended once it expires June 30.

“We have no announcement at this time related to new leadership of the Cavaliers basketball operations group,” Gilbert said in a statement.

Griffin’s departure comes three days before the draft — the Cavs are currently without a pick — and on the eve of free agency.

The 47-year-old Griffin had been Cleveland’s GM since May 2014. He took over the role on a full-time basis after serving as an interim GM for three months following Chris Grant’s firing.

Griffin oversaw the team’s return to prominence after LeBron James came back from Miami. Griffin orchestrated the trade that brought Kevin Love from Minnesota, and he bolstered the Cavs’ roster with other trades and free-agent signings.

Griffin was the fourth GM to work for Gilbert, who bought the Cavs in 2005.

Done deal: Philadelphia completed its trade for the No. 1 overall pick in this year’s NBA draft, landing the pick from the Boston Celtics in a move that clears the way for the 76ers to grab guard Markelle Fultz.

Philadelphia will hold the No. 1 pick for the second straight year.

Boston gets the No. 3 pick in Thursday’s draft from Philadelphia, plus either a first-rounder in 2018 and 2019.

If the Los Angeles Lakers hold a pick between No. 2 and No. 5 next season, Boston gets that one. If not, Philadelphia will send Boston either its own first-rounder in 2019 or Sacramento’s first-rounder that year.