Sounds like Al Horford might not be back with the Boston Celtics next season.

A source close to Horford says the center no longer is discussing a new three-year contract with Boston and now is “expected to sign a four-year free-agent contract elsewhere,” according to The Boston Herald’s Steve Bulpett. Horford chose not to exercise his player option, worth $30.1 million, on Tuesday.

That report was confirmed by ESPN’s Adrian Wojnarowski.

The Athletic’s Shams Charania says the C’s preparing for a scenario in which both Horford and Kyrie Irving “will leave as free agents.”

It’ll certainly be interesting to see how this unfolds.

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