2017–18 Oklahoma City Thunder season

This season was headlined by the acquisitions of All-Star players Paul George and Carmelo Anthony in trades with the Indiana Pacers and New York Knicks respectively, in addition to the reigning MVP Russell Westbrook signing a five-year extension worth $205 million.

[1] The Thunder clinched their playoff berth for the eight time in the last nine seasons with a win over the Miami Heat in a rematch of the 2012 Finals on April 9, 2018.

In the playoffs, the Thunder faced the 5th seeded Utah Jazz in the First Round, a team led by rookie Donovan Mitchell, and lost in six games.

After averaging a then-career low 16.2 points per game during the season, Anthony was traded to the Atlanta Hawks in the offseason, ending the Thunder's Big Three experiment.

Sometimes referred to as "Mr. Thunder", Collison appeared once in the finals (2012), and following his retirement, became the only player from the 2003 draft to play their entire career with the team that drafted them, and it also left Jeff Green of the Cleveland Cavaliers and Kevin Durant of the Golden State Warriors as the last remaining active players who played for the then-Seattle SuperSonics, with Mark Bryant and Sam Presti being the last remaining staff members that have been with the Thunder since the Sonics' final season in 2007–08.

Westbrook earned MVP honors after joining Oscar Roberson as the only player in NBA history to average a triple-double.

[7] On July 6, the Thunder traded Victor Oladipo and Domantas Sabonis to the Indiana Pacers in exchange for Paul George.

The Thunder decided to trade and gamble that a season with George on the roster will entice him to re-sign long term.

On September 25, the Thunder traded Enes Kanter, Doug McDermott and a 2018 second-round pick via CHI to the New York Knicks in exchange for Carmelo Anthony.

[11] Both Russell Westbrook and Paul George "played an immense part" in convincing Anthony to waive his no-trade clause to join the Thunder.

Sam Presti called Collison "one of the founding members of our organization and culture, it goes without saying that he has helped set internal standards and built a legacy that Thunder fans will remain indebted to for years to come.

"[17] Cole, who was not re-signed, signed a one-year deal with the Israeli team Maccabi Tel Aviv of the EuroLeague.