The Charlotte Hornets point guard is set to leave the franchise that drafted him eight years ago.
According to ESPN, Hornets owner Michael Jordan isn't willing to match the evaluation set out by Walker and his agent, Jeff Schwartz of Excel Sports.
Walker will duly leave the Hornets in free agency following what was his best season as a pro. The 29-year-old averaged 25.8 points, 5.9 assists and 4.4 rebounds per game during the 2018-19 campaign - playing all 82 regular season games.
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Reports suggest that Boston will offer the three-time All-Star a four year, $141 million contract, a deal he will accept in all likelihood.
Walker is viewed as a direct replacement for Kyrie Irving who is set to leave the franchise in free agency next month with the Brooklyn Nets and New York Knicks favourites to land the 2016 NBA champion.