IVAN BARBASHEV

The Florida Panthers are on the brink of getting swept out of the second round of the playoffs by the back-to-back defending champion Tampa Bay Lightning.

Artturi Lehkonen scored twice, Darcy Kuemper stopped 29 shots and the Colorado Avalanche beat the St. Louis Blues 5-2 in Game 3 of their second-round series.

David Perron had a hat trick and an assist to lead the St. Louis Blues past the Minnesota Wild 4-0 in Game 1 of their first-round series.

Sidney Crosby and Evan Rodrigues scored 12 seconds apart in the third period, and the Pittsburgh Penguins rallied past the St. Louis Blues 5-3.

The St. Louis Blues cruised through the coldest outdoor game in NHL history to beat the host Minnesota Wild 6-4.

(AP Photo/John Locher) (John Locher)The NHL is relaxing virus protocols during the playoffs for teams that reach a threshold for vaccination. The league sent a memo to teams and players Friday night outlining changes that take hold once 85% or more of the traveling party has been fully vaccinated. For a team with 56 members in its traveling party, 48 would need to be fully vaccinated. The NHL is the last of the major four North American pro sports leagues to announce plans to relax virus protocols for teams based on vaccination levels. ___Follow AP Hockey Writer Stephen Whyno on Twitter at https://twitter.com/SWhyno___More AP NHL: https://apnews.com/hub/NHL and https://twitter.com/AP_Sports

The NHL is relaxing virus protocols during the playoffs for teams that reach a vaccination threshold.

FILE - In this Feb. 16, 2019, file photo, St. Louis Blues right wing Vladimir Tarasenko, right, is congratulated as he passes the team box after scoring a goal against the Colorado Avalanche during the third period of an NHL hockey game in Denver. Tarasenko makes his return after early season shoulder surgery that limited him to three goals in 10 games. (AP Photo/David Zalubowski, File)

Ditto for St. Louis, the defending Stanley Cup champions. The Blues and Avalanche were navigating through some key injuries before the season was halted in March due to the coronavirus pandemic. The hiatus allowed time to heal and now the top two teams in the Western Conference return as Cup favorites. The two teams get things rolling Sunday in Edmonton by facing each other to kick off a round-robin tournament to determine seeding in the West. It should be a fun ride.Back on the ice for the Blues is forward Vladimir Tarasenko, who underwent shoulder surgery in late October.