If there's one area of Boston Celtics rising sophomore big man Robert Williams' game he knows he needs improvement, it's passing.

The 21-year-old Texas A&M product told the Boston Herald's Mark Murphy Saturday that he's been “most satisfied” with his passing the past week.

It's Williams' second year in a row participating for Boston's Summer League team in Las Vegas, Nevada, the hub for developing players and the first introduction to the Association for draft picks.

Williams was selected by the Celtics with the 27th pick in the first round of the 2018 NBA Draft. At 6'10”, Williams can play both the center and power forward positions—but mostly found time manning the paint during his freshman year in the league.

In his rookie season, Williams only appeared in 32 games for Boston, playing in 283 minutes and putting up 81 points, 81 rebounds, and a lowly seven assists. He converted on field goal attempts 70.6% of the time, however.

Per John Karalis of MassLive.com, Williams “see[s] plays ahead.” Williams went on to say “I’m passing to you because I know this man is going to help over and you’re going to be able to swing it and get a wide open shot. I love catching the ball in the post and picking the defense apart on the opposite side.”

Without All-Star big man Al Horford locked up at center for the Celtics, Williams has a chance to claim more minutes at the 5 this season for Boston; Enes Kanter was signed in the offseason but presents himself as an isolation, interior scorer where Williams could gain a reputation as a hard-nose defensive player with passing chops.