Jaylen Brown is entering his fourth year in the league and awaiting a contract extension of his rookie deal from the Boston Celtics. It appears the organization won't pull the trigger on a deal just yet, as Brown hasn't made the statistical jump they had expected from him before doling out the big check.

According to Adam Himmelsbach of The Boston Globe, that lack of improvement is largely what's keeping the Celtics from offering a big sum for the young wing.

“The problem for Brown is that he has not really shown statistical improvement over his three seasons. His per-36-minute numbers are almost identical. So the Celtics will likely be reluctant to make a max extension offer. But it’s unlikely Brown would settle for much less. The probable result is that no deal is finalized before the season begins, meaning Brown will enter next summer as a restricted free agent.”

Brown has been represented by his mother for the first three years of his career — a move that makes sense since a rookie contract is already set in stone — but Brown plans to hire an agent to navigate the upcoming process of signing his next deal.

While others from his draft class like Ben Simmons and Jamal Murray have netted five-year deals for around $170 million, he's expected to fall in a different category. Caris LeVert of the Brooklyn Nets recently signed a three-year, $52 million extension, and Brown could fall into that same range — expected to make within the $17-18 million per-year range.