A posthumous study of Stan Mikita's brain shows the Hockey Hall of Famer suffered from chronic traumatic encephalopathy at the time of his death a year ago.

Dr. Ann McKee, the director of the BU CTE Center, announced the findings during the Concussion Legacy Foundation's Chicago Honors Dinner on Friday night at the request of Mikita's family.

Oilers star Connor McDavid was cleared for practice and didn't require a noncontact jersey as the team hit the ice Friday for the first time in training camp.

"I feel good," McDavid said after playing on a line with Leon Draisaitl and Zack Kassian. "It was a complicated summer. Lots of stuff going on. Lots of different opinions. There was a time when [getting on the ice for camp] was definitely in doubt, but as of right now, it's good."

Stars forward Corey Perry has a broken foot that could sideline him for the opener with his new team.

Perry said on the opening day of training camp Friday that he tripped on a step earlier in the week and broke a small bone in his left foot. General manager Jim Nill said Perry wouldn't skate for two weeks, and the Oct. 3 season opener at home against Boston is less than three weeks away.

Vegas Golden Knights defenseman Shea Theodore says he underwent surgery for testicular cancer during the offseason and is expected to make a full recovery.

Theodore revealed his cancer diagnosis and subsequent treatment in an essay Thursday in The Players' Tribune.