P.K. Subban and Zdeno Chara aren't teammates, but they were Ivy League classmates this week.
The two all-star defensemen attended Harvard Business School together, taking courses in "The Business of Entertainment, Media, and Sports."
The three-day program teaches "proven approaches for launching and managing creative products and portfolios, managing and marketing talent, assessing and determining when to make smaller versus blockbuster bets, identifying and capitalizing on market disruptions, and other strategic challenges," according to the school's website.
It is designed for professionals in the talent industry, including athletes, musicians, actors, and agents.
Chara and Subban shared some of their experiences on social media.
Subban called Chara "an old acquaintance of mine" in a video he shared from the class on Thursday.
Chara posted some thoughts on his Instagram account.
"It's been (an) absolutely unbelievable experience and I love every piece of it, every minute, every class, such a great time to spend after the season," he said in the video.
The Nashville Predators and Boston Bruins defensemen weren't the only professional athletes in the class.
Michael Strahan, a former Super Bowl champion with the New York Giants and current TV personality, former NBA player Chris Bosh, Olympic ski champion Lindsey Vonn, former NFL wide receiver Mohamed Massaquoi, and international soccer players Kaka, Mario Melchiot, Edwin van der Sar and Nuri Sahin were also in the group.
The professor, Anita Elberse, shared a picture with her famous students on Instagram.
"Learning different aspects of the business side and just such a learning experience," Chara said. "Really enjoying everything I am doing at Harvard and I am thankful to all the professors and participants."