Happ is out of the lineup for Wednesday's game in Atlanta, Maddie Lee of the Chicago Sun-Times reports.
Happ is not in the lineup for Tuesday's game in Atlanta.
Happ went 2-for-5 with a double, an RBI and a run scored in Friday's 7-2 win over the Pirates.
Happ (hamstring) is starting in left field and batting second Tuesday against the Astros, Matt Kawahara of the Houston Chronicle reports.
Happ (hamstring) is not in the starting lineup for Sunday's game against the Marlins.
Happ was removed from Friday's game against the Marlins due to tightness in his right hamstring, Meghan Montemurro of the Chicago Tribune reports.
Happ went 3-for-5 with a grand slam and two additional runs scored during Tuesday's 12-11 extra-inning loss to Arizona.
Happ went 1-for-4 with a walk, a triple, two RBI and two runs scored in Friday's 9-7 win over the Dodgers.
Happ went 4-for-5 with a double, a walk, two RBI and a run scored in Sunday's 9-5 win over the Rangers.
Happ (hamstring) will start in left field and bat leadoff in Monday's Cactus League game against the Cardinals.