The Boston Bruins announced on Friday that an unidentified player tested positive for the coronavirus prior to attempting to use the team's facilities.
The NHL team said in a statement that the player has since tested negative twice for COVID-19 and did not have symptoms. The player also did not take part in any informal workouts with team-mates, according to the Bruins.
All NHL players wishing to use team facilities for voluntary workouts are required to be tested for COVID-19 as part of Phase 2 of the league's four-step Return to Play plan. The Bruins said all players that have returned to this point during Phase 2 have tested negative.
The NHL announced on Thursday it will allow teams to begin training camps on July 10 to prepare for a restart of the suspended 2019-20 season, provided all medical protocols are in place. The league hopes to resume the season in early August with a 24-team playoff format.
Ten players have been known to test positive for COVID-19 since the league suspended play on March 12. Five of those players are members of the Ottawa Senators, who did not qualify for the expanded postseason.