It would likely take somewhere close to a five-year, $125 million commitment from the Mavericks to prevent Brunson from signing with the Knicks, sources said.
Harden will reportedly return to Philadelphia on a contract that provides the 76ers with financial flexibility.
The 10-year veteran is eligible to sign a five-year maximum contract with the Wizards worth close to $250 million or a four-year deal from another team in the $180 million range, both starting at a $43 million salary.