Ryan Nugent-Hopkins, who had corrective season-ending surgery on a shoulder last season, initially expressed confidence that he would be "good to go" for the start of the next season but it's being reported now that this may not be the case.
Luke Schenn has inked a two-year deal with the Arizona Coyotes.
Claude Giroux (hip/abdomen) has already resumed skating.
The Toronto Maple Leafs have signed Auston Matthews to a three-year, entry-level contract.
Mikhail Grigorenko has inked a one-year, $1.3 million contract with the Colorado Avalanche.
Brad Richards has announced his retirement.
Marcus Johansson has inked a three-year, $13.75 million contract with the Washington Capitals.
The Ottawa Senators have acquired Derick Brassard and a 2018 seventh round pick from the New York Rangers in exchange for Mika Zibanejad and a 2018 second round selection.
Alex Killorn has agreed to a seven-year, $31.15 million contract.
Jamie Benn has signed an eight-year, $76 million extension with the Dallas Stars.
Jaden Schwartz has signed a five-year, $26.75 million contract with the St. Louis Blues.
Jamie Benn had a core muscle injury that led to surgery.