Sheldon Keefe makes mysterious change to his lineup on Sunday.

Things are not going as well as the Toronto Maple Leafs would have liked this season and it sounds like there may be some changes forthcoming as a result.

Speaking to the media prior to a game against the Anaheim Ducks, Maple Leafs head coach Sheldon Keefe confirmed that he would be instituting changes to his lineup on Sunday night. The problem however is that in unusual fashion, Keefe opted to keep those changes a secret from reporters, suggesting instead that we will have to wait and see come puck drop to see what tweaks he has made.

No doubt there will be quite a buzz around the Leafs heading into tonight's game considering these unknown changes, but whether or not they will truly be significant remains to be seen.