Penguins allow late power play goal

Mittelstadt scores go-ahead goal on a power play with 4:09 remaining as Avs beat Penguins 4-1
Penguins vs. Avalanche: Casey Mittelstadt’s late goal lifts Avs to victory
Scott Wedgewood, late power-play goal propel Avalanche past Penguins
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Penguins Grades: Getting Honest About the Pen’s Problem
DENVER — Pittsburgh Penguins captain Sidney Crosby was encouraged by much of the Pittsburgh Penguins game Tuesday. So, too, was coach Mike Sullivan who had little to criticize as his team outplayed Stanley Cup contender Colorado Avalanche at Ball Arena.