Morrison convinced West Brom can upset Man City
The Baggies were one of the few sides to take any points from last season's champions, drawing 0-0 at The Hawthorns on Boxing Day.
Morrison claims there is no reason why Albion cannot repeat the trick this season.
"It's a tough game for us next Saturday," said the Scotland midfielder. "I remember last season we defended like lions and after that game it killed us for a bit. "We couldn't win after that because it took a lot out of us.
"We're going to have to do the same again and be smart against them.
"At the start of the season we wanted to make this a tough place to come and improve on our home form.
"Last season our away form was tremendous really and our home form was a bit iffy."