"It was an important weekend for Arsenal in that ourselves and Chelsea dropped points," Ferguson told Sky Sports.
"But points will be dropped by the top teams. There is a long way to go and it makes it interesting now. It's going to be a really good, tight finish.
"It's something the neutrals will all be enthralled by.
"We know the job we've got to do. Arsenal still have to come to Old Trafford and they have got to go to Chelsea.
"It's like I said at the start of the season - I think it will go to the wire."