According to head coach Shane Steichen, both Indianapolis Colts linebacker Shaq Leonard and running back Zack Moss are ‘progressing’ in their respective recoveries (via The Athletic’s James Boyd):
#Colts HC Shane Steichen says LB Shaq Leonard is still in the concussion protocol but he's "progressing."
He mentions that Zack Moss is "progressing well," too, as he works his way back from a broken right arm. No definitive statement on if he'll be available for Week 1.