Sullivan added that the Penguins canceled their morning skate due to protocol. Being placed on the list does not necessarily mean a player tested positive.
Crosby is tied for the team lead with seven goals and ranks first among Pittsburgh skaters in both assists (11) and points through 20 games. The 33-year-old Penguins captain sits second among the club's forwards in average ice time, logging 20:24 per contest.
The NHL's COVID-19 cases - both suspected and confirmed - have appeared to decrease lately following multiple outbreaks earlier in the season. Tuesday's list featured just three players: Crosby, Ryan Johansen of the Nashville Predators, and Tomas Hertl of the San Jose Sharks.
The league updates the list around 5 p.m. ET every day.