'No secrets' and no certainty in one-of-a-kind NHL playoffs

Vegas Golden Knights goaltender Marc-Andre Fleury (29) blocks a shot by Minnesota Wild left wing Jordan Greenway (18) while Golden Knights' Shea Theodore (27) defends during the second period of an NHL hockey game, Wednesday, May 5, 2021, in St. Paul, Minn. (AP Photo/Andy Clayton-King)

Pittsburgh Penguins' Kasperi Kapanen (42) celebrates with goaltender Tristan Jarry after the team's 5-1 win over the New Jersey Devils in an NHL hockey game in Pittsburgh, April 22, 2021. (AP Photo/Gene J. Puskar)

Tampa Bay Lightning defenseman Luke Schenn, left, passes the puck as Florida Panthers left wing Ryan Lomberg, right, defends during the second period of an NHL hockey game, Monday, May 10, 2021, in Sunrise, Fla. (AP Photo/Lynne Sladky)

New York Islanders leave the ice after they were defeated in the overtime period of an NHL hockey game against the Boston Bruins, Monday, May 10, 2021, in Boston. The Bruins won 3-2 in overtime on a goal by Bruins left wing Taylor Hall. (AP Photo/Elise Amendola)

St. Louis Blues' Mike Hoffman (68) and Colorado Avalanche's Liam O'Brien (38) chase after a loose puck during the first period of an NHL hockey game Monday, April 26, 2021, in St. Louis. (AP Photo/Jeff Roberson)

Toronto Maple Leafs defenseman Ben Hutton (55) gloves the puck as Montreal Canadiens forwards Cole Caufield (22) and Eric Staal (21) watch during the third period of an NHL hockey game Saturday, May 8, 2021, in Toronto. (Nathan Denette/The Canadian Press via AP)

Winnipeg Jets' Pierre-Luc Dubois (13) and Edmonton Oilers' Kailer Yamamoto (56) collide with Jets goaltender Connor Hellebuyck (37) during the third period of an NHL hockey game Wednesday, April 28, 2021, in Winnipeg, Manitoba. (John Woods/The Canadian Press via AP)

Carolina Hurricanes right wing Jesper Fast (71) and Nashville Predators defenseman Dante Fabbro (57) vie for the puck during the first period of an NHL hockey game Monday, May 10, 2021, in Nashville, Tenn. (AP Photo/Mark Zaleski)

FILE - Washington Capitals' Zdeno Chara (33) defends against Boston Bruins' Nick Ritchie during the second period of an NHL hockey game in Boston, in this Sunday, April 11, 2021, file photo. The Boston Bruins and Washington Capitals already have bad blood built up going into their first-round playoff series that starts Saturday night, May 15. (AP Photo/Michael Dwyer, File)

Fans cheer during the second period of an NHL hockey game between the Boston Bruins and the New York Islanders at TD Garden, Monday, May 10, 2021, in Boston, has moved to the next step in its COVID-19 reopening plan, allowing large indoor and outdoor venues, including TD Garden, Fenway Park and Gillette Stadium to increase fan capacity from 12% to 25%. (AP Photo/Elise Amendola)