It'll work fine. That's what the instructions from my LHBS say to do. I'm personally not a big fan of this method, since the sparge is about as inefficient as possible here, but if you don't have a grain bag then go for it.
Or, if there's a hardware or paint store anywhere near you, you can buy a paint strainer bag. Lots of people (including me) use those as grain bags and they work great. And are pretty damn cheap.