Motherwell lost 5-0 against Rangers after a poor second half.
“We are really, really disappointed,” said McCall. “We didn’t see that coming. I don’t think anyone could have seen that coming before the game and certainly not at half-time.
“The last 30 minutes were embarrassing. It’s embarrassing the fact you get beat 5-0 at home, that should never happen.
“It’s not even acceptable to go away to the Old Firm and get beat like that, but it’s understandable if they’re playing really well. But not on your own patch.”
