According to the Ottawa Sun, the injury occurred during offseason training last month in Montreal.
Michalek, 27, is coming off the best season of his NHL career, when he set a career-high with 35 goals and totaled 60 points for just the second time in eight seasons. His 10 power-play goals also tied for the team lead.
He seemed to thrive on his own and didn't really need any push from me. I certainly don't want to get in the way of the coaches. You see how that goes sometimes. I never really worried about it and just enjoyed the ride.
— David Ekblad on his son's [Aaron Ekblad] journey to the NHL, signing with the Florida Panthers