What happened: Mittelstadt spent most of the summer in Minnesota with his fiancée and their son, Macklin, who was born in April. His routine mixed workouts and skating with diaper changes and golf.

Why it matters: He focused on getting stronger and faster after feeling slow last season. The coming campaign is the final year of his current contract.

What to watch: Training camp will offer the first measure of whether his speed work translates on the ice.