Pittsburgh Penguins captain Sidney Crosby has been placed on the NHL's COVID-19 protocol list and will miss Tuesday's game against the Philadelphia Flyers, head coach Mike Sullivan announced.
The Penguins cancelled morning skate as a result.
"We can do all the right things and this kind of stuff could happen," Sullivan said, according to Stephen Whyno of The Associated Press.
Players on the NHL's COVID-19 protocol list have not necessarily tested positive for the novel coronavirus. The NHL releases an updated list for all 31 teams every day at 5 p.m. ET. On Monday, only four players -- Arizona's John Hayden, Detroit's Patrik Nemeth, the Rangers' Kaapo Kakko and San Jose's Tomas Hertl -- were on the list, matching the fewest number of players in protocol this season.
Crosby has seven goals and 18 points in 20 games this season.
The Flyers experienced an outbreak within their roster in February that saw as many seven players added to the list. That outbreak forced the Flyers to pause operations for seven days and the final player who was on the list -- Travis Konecny -- will return to the lineup for the first time Tuesday.
The Flyers and Penguins are scheduled to play each other Thursday and Saturday as well.