McKinstry (knee) avoided serious injury in Sunday's preseason game against the 49ers, Jordan Schultz of BleacherReport.com reports.
McKinstry limped off the field after the Saints' first defensive drive in Sunday's contest and was taken back to the locker room. Further evaluation didn't reveal any significant issues, and the rookie second-round pick is expected to suit up for New Orleans' regular-season opener against Carolina on Sept. 8.