Jayson Tatum has agreed to a five-year extension worth up to $195 million extension with the Boston Celtics, a source told ESPN's Adrian Wojnarowski.
The full designated rookie max of $163 million could go up to nearly $200 million with All-NBA escalators, sources said.
Tatum's agent Jeff Wechsler and the Celtics finalized details today, the source said.
The No. 3 pick in the 2017 NBA draft, Tatum made his first All-Star team this season, as he blossomed into the face of the Celtics while leading the franchise to the Eastern Conference finals again last season.