The Boston Celtics have made an important yet expected move.

According to Sham Charania of The Athletic, the Celtics have exercised their fourth-year option to retain star forward Jayson Tatum.

Tatum was the No. 3 overall pick in the 2017 NBA Draft. The Celtics selected him after trading down from the No. 1 overall pick. The Philadelphia 76ers would select Markelle Fultz at that juncture.

All first-round picks in the NBA sign four-year deals with two team options on the final two seasons. Given Tatum's performance, it was a foregone conclusion that the Celtics would exercise this option. It was just a matter of when.

Tatum will make $9.9 million in the final season of his rookie deal. During the 2020 offseason, he will be eligible to sign an extension with the Celtics, much like Jaylen Brown, the team's No. 3 overall pick in 2016, is eligible to sign one with the team right now.

Last year, Tatum averaged 15.0 points, 6.0 rebounds, 2.1 assists, and 1.1 steals while playing 31.1 minutes per game for the Celtics. They are hoping that he will make a bigger leap during his third season and really emerge as one of the NBA's rising stars.

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