Terms of their rookie scale contracts are not disclosed due to team policy.
The Celtics took Langford, an Indiana University product, with their first selection at No. 14 overall. The 19-year-old Langford played just one season for the Hoosiers in which he averaged a team-high 16.5 points per game along with 5.4 rebounds and 2.3 assists to earn 2018-19 All-Big Ten honors.
Langford has been unable to suit up for the C’s in the NBA’s Summer League as he has been relegated to being a bystander while he recovers from surgery on a torn ligament in his right thumb.
Boston took Williams eight picks later in the first round at No. 22 overall. The two-time Southeastern Conference Player of the Year starred for the University of Tennessee by averaging 15.7 points, 6.5 rebounds and 2.1 assists per game over a 104-game, three-year collegiate career.
The 6-foot-7, 240-pound Williams has shown flashes of what he can provide on the court with the Celtics by averaging 11.0 points, 6.7 rebounds, 2.0 assists and 1.3 steals in three Summer League games.