The Maple Leafs are trying to overhaul their blueline this off-season, and this is a good start. Polak is a right defensive defenseman who stays at home and can provide some grit and toughness from the back end. It's a definite need for Toronto. They shipped out a more passive defensive defender in Gunnarsson, plus a fourth-round pick to fill this hole.

In Gunnarsson, the Blues acquire a more mobile defender than Polak (with with less ruggedness). He's also a left defenseman who may end up playing alongside Leopol (who could move to the right side) on the Blues' third pairing. In Toronto, Gunnarsson usually played on the first pairing, so this should be a better role for him moving forward.

There is nothing to see here from a fantasy standpoint, as neither Polak nor Gunnarsson have much to offer in this area. If this helps anyone here, it may be Toronto blueliner Morgan Rielly (who could be paired with Polak in 2014-15).