The Hawks have a roster spot available. They signed Jordan Sibert to a 10-day contract last week and converted the two-way contract of Jaylen Adams earlier this month. Sibert’s 10-day contract expires on March 1.
The 6-foot-7 Johnson, 23, is playing with the Lakeland Magic of the NBA G League. In 37 games this season, he has averaged 14.8 points, 5.2 rebounds and 1.4 assists in 30 minutes. He is shooting 43 percent from 3-point range.