The Hawks announced Wednesday that Krejci (back) will be re-evaluated in three to four weeks.
Krejci (back) has been ruled out for Wednesday's game against the Knicks, Kevin Chouinard of the Hawks' official site reports.
Krejci racked up five points (1-3 FG, 1-3 3Pt, 2-2 FT) across 15 minutes during Saturday's 132-127 loss to Indiana.
Krejci will come off the bench in Thursday's game against Cleveland.
Krejci dropped 20 points (6-13 FG, 6-11 3Pt, 2-4 FT), seven assists, three steals, two rebounds and two blocks in 35 minutes during Saturday's 117-94 loss to the Raptors.
Krejci racked up nine points (3-6 FG, 3-5 3Pt), one rebound and three assists across 23 minutes during Wednesday's 114-104 loss to Detroit.
Krejci logged 15 points (6-9 FG, 3-6 3Pt), five rebounds, six assists and two steals across 35 minutes during Tuesday's 122-117 win over the Suns.
Krejci posted 12 points (4-8 FG, 3-5 3Pt, 1-1 FT), six assists, three rebounds and one steal across 26 minutes during Thursday's 123-115 loss to the Suns.
Krejci chipped in 14 points (5-12 FG, 3-8 3Pt, 1-1 FT), six rebounds, five assists and two blocks across 28 minutes during Wednesday's 139-120 loss to the Nuggets.
Krejci supplied five points (2-7 FG, 1-5 3Pt), four rebounds, three assists, one block and three steals in 30 minutes during Sunday's 136-107 victory over the Raptors.