SUNRISE, Fla. — Another dominant performance in net from Sergei Bobrovsky and another dominant effort from the power play led the Florida Panthers to a 4-0 shutout victory over the Colorado Avalanche on Saturday at Amerant Bank Arena. The Panthers improved to 33-15-4 on the season, are 15-3-2 in their past 20 games and swept the two-game season series against Colorado. The Avalanche fell to 32-17-4 and have lost four consecutive games since the All-Star Break. The win started in net. Bobrovsky stopped all 35 shots that came his way against the top scoring team in the NHL (Colorado entered aver…