NBA free agency 2021: Why adding Kemba Walker is a major coup for the New York Knicks

How does adding Kemba Walker change the outlook for the New York Knicks?

ESPN's Adrian Wojnarowski reported Wednesday morning that Walker had reached a buyout agreement with the Oklahoma City Thunder and plans to sign with the Knicks -- a homecoming for the Bronx native -- after clearing waivers.

Can Walker, 31, revitalize his career in Madison Square Garden after two injury-marred seasons with the Boston Celtics? Why would the Thunder agree to a buyout with Walker rather than waiting to try to trade him?

Let's take a look at this surprising transaction.