Danny Welbeck and Cristiano Ronaldo traded first-half blows at the Santiago Bernabeu in the Round of 16 first leg and Ferguson feels his Red Devils are in a decent position to move through to the final eight when the two clubs meet at Old Trafford on March 5.
"There were a lot of incidents in the game. We had lots of chances in the match and played some good attacking football at times but we did not get the possession we should have had,” he told Sky Sports 2.
"Real won possession without question, but it takes us back to Old Trafford with a great chance.
"It will be very open. I think we'll score at Old Trafford. We have a big job on our hands but it is definitely within our grasp."