When do they get better, the Penguins are now 2-1-0.
They have allowed just one goal in the last three games, and are on the verge of becoming the first team in NHL history to win three straight.
The Penguins have been without forwards Nick Bonino and Chris Kunitz for nearly three weeks, and goaltender Marc-Andre Fleury has not been able to practice in over a week.
The Penguins have now been shut out in the first five games, which is the longest such streak in NHL annals.
The win over the Washington Capitals on Thursday night, which came just one day after a 3-1 win over Nashville, marked a victory for Pittsburgh, who are now 10-1 in their last 13 games.
Penguins goalie Marc-André Fleury was stellar in his first start since being acquired by the Penguins from the Minnesota Wild on July 1, 2016.
The 26-year-old goaltender played solid, smart, controlled, aggressive hockey and allowed just two goals on 25 shots.
Fleury is 2-0-1 with a 2.00 goals-against average and .902 save percentage.
Penguins captain Sidney Crosby had a great night in net, stopping all six shots he faced.
He stopped 26 of 31 shots, and has allowed just six goals in his last two games.
The first time Crosby stopped a power play was on Oct. 7 against New Jersey.
The second time was Nov. 16 against Columbus.
Crosby stopped 33 of 39 shots in the Penguins 4-1 loss to the New York Islanders.
He has faced the Sabres four times, but is 0-0 against the Sabres.
The Pens have had a tough time scoring.
They are 0-2-0 in the third period, which comes after they allowed two goals in the opening period.
Pittsburgh’s three power-play goals have come from one-timers.
The Sabres have had seven power-plays goals this season.
The last time the Penguins scored three power plays in a row was Feb. 26, when they were eliminated by the Columbus Blue Jackets.
The Panthers were shut out twice in regulation this season, losing 5-3 in overtime on Feb. 21 and 4-2 in overtime in their season opener.
The Predators are coming off their first road loss in six games and their third straight loss.
They lost 3-2 to the Calgary Flames on Thursday.
The Sharks were also shut out for the first time in four games this season on Wednesday.
They opened the scoring in the second period on a power-shot goal by Logan Couture.
Goalie Ben Bishop stopped all three of his shots in regulation and allowed two of three power play goals to lead the Predators to a 3,000-save effort.
Goalies Tuukka Rask stopped 35 of 41 shots in a 2-2 tie with the Panthers.
The Lightning lost 5-4 to the Panthers in overtime, ending their three-game winning streak.
The Ducks won 2-3 on Wednesday night, ending a three-match losing streak.
They were unable to come out with the same energy and focus that the Penguins were able to, and that was reflected in their inability to score.
Ducks forward Ryan Getzlaf had his best game of the season.
He had six points (one goal, four assists) in four regular-season games.
He leads the Ducks with 21 goals, which includes a career-high 10-game point streak.
Getzlau also has eight points (four goals, seven assists) and was plus-4 with three penalty minutes in two games against the Panthers on Wednesday, including a goal and an assist in a 4-3 overtime victory.
The Stars have lost four straight games and are 2-6-0 at home.
Dallas was 0-1 against Pittsburgh, but was victorious on Friday.
The Bruins lost 3, and they will be without goalie Tuukke Rask, who has not played since Feb. 20 due to illness.
They will need him to help the Bruins get back to winning ways.
They did have a chance to clinch the third playoff spot in the East when they defeated the Devils 4-4 on Wednesday at American Airlines Center.
Boston has lost three straight games, falling 2-5 to the Kings on Thursday and losing 5 3-0 to the Capitals on Friday in the most recent meeting.
The Capitals are currently in third place in the Metropolitan Division, two points ahead of Boston, who is at 3-5-2.
They had to win to make the playoffs, and if they are eliminated, they will fall one game behind Philadelphia.
Philadelphia is tied with Detroit for the best record in the Eastern Conference, but has struggled to score goals.
The Flyers are 10-6 in their past 12 games.
Their three losses are by a combined score of 6-1.
They face the Kings at 6:30 p.m.
CT on Thursday in the Stanley Cup Playoffs.
Penguins forward Chris Kunetz and defenseman Brandon