In February, the Boston Celtics put together a trade package for Kawhi Leonard,
If the Celtics had no chance with all of their assets in young stars, the Lakers
Lakers, 76ers Interested In Trading For Kawhi Leonard https://t.co/aGApuDFNRd— RealGM (@RealGM) June 13, 2018
The players the Celtics have to offer in Jaylen Brown, Jayson Tatum, Gordon Hayward, Terry Rozier, Kyrie Irving and Marcus Morris (all hypothetically speaking) are much greater than what LA and Philly can provide. Their depth nowhere near compares to Boston's.
As for the Spurs, Leonard and Gregg Popovich are scheduled to meet in New York to try and get back on the same page so The Claw can remain in San Antonio long term.
It's clear the Spurs have little interest in trading Leonard and want him to be a member of the organization for years to come, so on top of being unwilling to trade him, they aren't even open to considering it with the best trade partner.
So, all in all, dream on Lakers and Sixers fans. The Celtics were shut down without the Spurs second guessing, so you guys have no shot.