Scott Cruickshank of The Athletic: Calgary deals with a devastating blow to their defense as Jusso Valimaki tore his ACL. This means Valimaki may miss the entire 2019-20 season or a good portion of it.
Worse, Jusso Valimaki will have to wait for surgery as he is over in Europe currently. Calgary team doctors flying him to North America is a must so they can oversee the operation and subsequent recovery. The extent of the ACL tear will not be known until then. In the meantime, TJ Brodie going off the trade market appears likely.