Jaylen Brown and his new agent reportedly are getting right down to business.

The Boston Celtics have offered Brown a four-year contract extension worth $80 million, Yahoo Sports' Chris Haynes reported Wednesday.

But the 22-year-old guard, who is set to become a restricted free agent this offseason, is "pursuing a bigger offer," according to Haynes.

A $20 million-per-year deal would make Brown the third-highest-paid player in Boston, behind only max-contract players Kemba Walker and Gordon Hayward.

Brown may be wise to bet on himself, though. He'd likely be a top-10 free agent in a weak 2020 class, and possibly could vault into the top five with a strong fourth season.

Whether Brown deserves a maximum contract remains to be seen, but it sounds like he's pushing for more than what the Celtics are offering him.

"Everybody says that they’re not concerned with it, but in some way, shape or form they are,” Brown told The New York Times' Marc Stein in a recent interview, via Stein's email newsletter. "But to be honest, it’s really not overwhelming me or ruling my thoughts. I know what type of talent I have. I’m confident in myself. I’m confident in my ability."

The Celtics have until next Monday to offer Brown an extension, or risk him testing the market in restricted free agency.

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