Winnipeg Jets' head coach Paul Maurice and Nikolaj Ehlers (27) joke during the first day of the Jets NHL summer training camp as the NHL reopens during COVID-19 in Winnipeg, Monday, July 13, 2020. (John Woods/The Canadian Press via AP)

In this photo provided by the Dallas Stars NHL hockey team, interim head coach Rick Bowness watches practice in Frisco, Texas, Tuesday, July 14, 2020. Bowness, 65, coached from behind the bench the first couple of days of Dallas Stars training camp before lacing up his skates and getting on the ice. Montreal's 60-year-old Claude Julien, Edmonton's 58-year-old Dave Tippett and others are confident in the NHL's protocols as older, more at-risk people during the COVID-19 pandemic. (Jeff Toates/Dallas Stars via AP)

In this photo provided by the Dallas Stars NHL hockey team, interim head coach Rick Bowness watches practice at Comerica Center in Frisco, Texas, Tuesday, July 14, 2020. Bowness, 65, coached from behind the bench the first couple of days of Dallas Stars training camp before lacing up his skates and getting on the ice. Montreal's 60-year-old Claude Julien, Edmonton's 58-year-old Dave Tippett and others are confident in the NHL's protocols as older, more at-risk people during the COVID-19 pandemic. Only one coach, Florida's 63-year-old assistant Mike Kitchen, has opted out of hockey's return. (Jeff Toates/Dallas Stars via AP)

New York Islanders head coach Barry Trotz give instructions during a team practice, Monday, July 13, 2020, at the team's practice facility in East Meadow, N.Y. (AP Photo/Kathy Willens)

Florida Panthers head coach Joel Quenneville, center, talks with his players during NHL hockey training camp, Tuesday, July 14, 2020, in Coral Springs, Fla. (AP Photo/Lynne Sladky)