Wallace is in the starting five for Tuesday's game versus the Celtics, Brad Rowland of the Locked On Podcast Network reports.
Wallace provided six points (2-5 FG, 0-1 3Pt, 2-2 FT), four rebounds, two assists, two blocks and four steals in 21 minutes during Monday's 123-93 loss to the Celtics.
Wallace finished Friday's 123-115 loss to Sacramento with 14 points (5-9 FG, 4-8 3Pt), three rebounds, three assists and one block across 29 minutes.
Atlanta recalled Wallace from the G League's College Park Skyhawks on Monday, Brad Rowland of the Locked On Podcast Network reports.
Wallace generated 23 points (8-17 FG, 5-12 3Pt, 2-4 FT), nine assists, six rebounds and three steals during 27 minutes of Saturday's 90-82 loss to the Knicks in Summer League.
Wallace and the Hawks agreed to a two-way contract Monday.
Wallace was waived by the Hawks on Sunday, Kevin Chouinard of the Hawks' official site reports.
The Hawks signed Wallace to a training camp deal Friday, Kevin Chouinard of Hawks.com reports.