5:01 PM ET
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 Sunday, the source said.
Tatum will receive the 30% max that would boost the contract’s value to $195 million only if he makes first-, second- or third-team All-NBA next season, per sources. Tatum was a third-team All-NBA selection this past season. He also will receive a player option in the deal, a sourced told Wojnarowski.
The No. 3 pick in the 2017 NBA draft, Tatum made his first All-Star team this past season, as he blossomed into the face of the Celtics while leading the franchise to the Eastern Conference finals again.
Tatum, 22, averaged career highs of 23.4 points, 7.0 rebounds, 3.0 assists and 1.4 steals this past season for Boston, and boosted his 3-point attempt rate from 3.9 per game in 2018-19 to 7.1 per game. He scored 39 points while guarding Kawhi Leonard