Altmyer sustained an upper-body injury in the second quarter of the game against Central Arkansas and didn’t play in the second half of the Rebels’ 59-3 win.
USC transfer Jaxson Dart started the opener and Altmyer took the first snaps in Game 2.
“(Altmyer) was out there today,” Kiffin said of the practice. “I think he’ll be all right. So we’re just going to push forward the way that we’ve been going.
“We’ll figure out who’s going first at some point later in the week, probably.”
Altmyer was 6-of-13 passing for 90 yards and two touchdowns and he ran for a third score in the game. He was intercepted once.
Dart completed 10 of 15 passes for 182 yards and a pair of touchdowns.