Draft picks was traded to the
Oklahoma City Thunder. The Thunder had two second-round picks entering the draft. The Thunder traded their 2018 first-round pick in the
Enes Kanter trade to the
Utah Jazz back in 2015 which was later traded by the Jazz to the
Minnesota Timberwolves. The Thunder's other second-round pick was originally acquired from the
Boston Celtics as a result of the
Perry Jones trade in 2015. On draft night, the Thunder traded a 2019 second-round pick and cash considerations to the
Charlotte Hornets in exchange for the draft rights to
Hamidou Diallo, the forty-fifth pick. The trade was later finalized on July 6. The Thunder, after the
2018 NBA draft night and the conclusion of player acquisitions and transactions, ended with Kentucky guard
Hamidou Diallo, Virginia guard
Devon Hall and Texas-Arlington forward
Kevin Hervey.
Trades On July 20, the Thunder traded
Dakari Johnson and cash considerations to the
Orlando Magic in exchange for
Rodney Purvis in an effort for payroll relief. By trading Johnson's guaranteed contract for Purvis's non-guaranteed contract, the Thunder saved nearly $6.6 million in luxury tax savings. On July 23, the Thunder then traded
Rodney Purvis to the
Boston Celtics in exchange for
Abdel Nader and cash considerations. was traded to the Thunder. On July 25, the Thunder traded
Carmelo Anthony and a 2022 protected first-round pick to the
Atlanta Hawks in a three team trade, for
Dennis Schröder from Atlanta and
Timothé Luwawu-Cabarrot from Philadelphia. Coming off his lowest scoring season, Anthony saw his role and playing time dwindle during the season and playoffs. After the season ended, Anthony rejected the idea of coming off the bench, saying it was "out of the question", while preferring to play with the ball in his hands more. Following the Thunder's defeat against the
Utah Jazz, Anthony was the focal point of trade talks in order to save on the luxury tax bill for next season. In exchange for Anthony, the Thunder received
Dennis Schröder and
Timothé Luwawu-Cabarrot. Schröder came off the
2017-18 season as the leading scorer for the Hawks, averaging 19.4 points. The past two seasons, Schröder had developed into a starter leading the Hawks to a playoff appearance in 2017. Luwawu-Cabarrot came to the Thunder after two seasons with the 76ers since being selected 24th overall in the
2016 NBA draft.
Free agency spent 15 seasons with the Thunder. For this offseason, free agency began on July 1, 2018, while the July moratorium ended on July 6.
Corey Brewer,
Nick Collison,
Raymond Felton,
P.J. Dozier,
Paul George,
Jerami Grant,
Daniel Hamilton and
Josh Huestis were set to hit unrestricted free agency. On May 10,
Nick Collison announced his retirement after 15 years with the Thunder dating back to the
Seattle SuperSonics. Collison appeared in 910 games and 91 playoff games with career averages of 5.9 points, 5.2 rebounds and 1.0 assists. was re-signed to a multi-year contract.On June 30, it was reported that
Paul George agreed to a four-year, $137 million deal to stay with the Thunder, which he later signed on July 6. After informing the
Indiana Pacers that he would not re-sign with them, opting to join the
Los Angeles Lakers in free agency, the Thunder spent the year recruiting George to sign long-term after trading for him. Since the
2017-18 season ended, the Thunder convinced George to stay, hinging his trust on
Sam Presti and his strong relationship with
Russell Westbrook. The same night on June 30, it was reported that
Jerami Grant agreed to a three-year, $27 million deal to stay with the Thunder, which he later signed on July 7. On July 3, it was reported that
Raymond Felton agreed to a new contract to stay with the Thunder, which he later signed on July 12. Brewer, Dozier, Hamilton and Huestis, who were not re-signed, joined the
Philadelphia 76ers,
Boston Celtics,
Atlanta Hawks and the
Austin Spurs of the
NBA G League respectively. On July 2, it was reported that
Nerlens Noel agreed to a two-year, minimum deal with the Thunder, which he later signed on July 6. Noel spent the
2017-18 season with the
Dallas Mavericks. On July 7,
Deonte Burton signed a
two-way contract with the Thunder. Burton spent the 2017–18 season with the
Wonju DB Promy in the
Korean Basketball League before playing for the Thunder in the
2018 NBA Summer League. To fill in the other slot,
Tyler Davis signed a two-way contract with the Thunder on August 13. Davis came undrafted out of
Texas A&M. On August 31,
Kyle Singler was waived by the Thunder with the stretch provision. By waiving Singler, the Thunder saved more than $20 million in luxury taxes.
Front office and coaching changes On August 20, the Thunder announced
Bob Beyer as an assistant coach. Beyer joins the Thunder after serving as an assistant coach with the
Detroit Pistons with most recently being the associate head coach for the last two seasons. ==Roster==