(Photo credit: Geoff Burke-Imagn Images)

Vegas coach Bruce Cassidy has just one simple request for his team heading into Sunday afternoon's game at Pittsburgh.

Start on time.

The three-week Olympic break did little to help the Golden Knights recharge and snap a season-long habit of poor starts. Vegas has been outscored 5-1 in the first two periods in its first two games of a five-game road trip coming out of the break.

The good news is that the Pacific Division leaders have earned a split of those two contests, scoring five goals in the third period to pull out a 6-4 victory over the Los Angeles Kings on Wednesday, followed by a 3-2 setback to the Washington Capitals on Friday night.

Vegas trailed 3-0 heading into the final 20 minutes against the Capitals, managing just 13 total shots on goal during the first two periods. This despite the fact that five of its top players -- center Jack Eichel, captain Mark Stone, forward Mitch Marner and defensemen Shea Theodore and Noah Hanifin -- had been given Wednesday's game off to help recuperate after playing in the Olympics. Those five players combined for just one assist, by Marner.

'They had plenty of rest, to be honest,' Cassidy said after Friday's game when asked if the five players may have been battling fatigue after the long trip back from Italy. 'They're going to need to be better Sunday. Those are our best players, our leaders, and we expect them to play like that.

'They weren't on time,' the coach continued. 'We tried to give them rest. Hopefully, it pays off on Sunday, and next week, and whatnot. Tonight, it didn't.'

Eichel and Hanifin had spent Tuesday at the White House with the gold medal-winning U.S. team and then stayed in D.C. for a couple of days of rest while Stone, Theodore and Hanifin spent their free time in Las Vegas before flying east on Thursday to join the team.

Cassidy, who has taken some of the blame in the past for slow starts, didn't this time.

'We weren't ready to play,' he said. 'Coach has to prepare your team to play, but this one the players weren't ready to play. They're professionals. They've got to be ready to go. And we weren't nearly good enough.'

Vegas had several chances down the stretch to tie the game, but Washington goalie Logan Thompson stopped a Brayden McNabb short-handed breakaway and followed that up by making a grade-A stop on a close-in try by Marner.

'We're always going to respond,' Cassidy said. 'I've said that many times, and we did it again tonight. Good for us to play 20 minutes. That's the thing, right? We play 20 minutes and almost win a hockey game. Imagine if we played 40 or 45?'

Pittsburgh will be playing the second game of a back-to-back that began with a 3-2 shootout loss to the host New York Rangers on Saturday afternoon. The Penguins, who got goals from Anthony Mantha and Ryan Shea, blew a 2-0 second-period lead and fell to 1-8 in shootouts, the worst mark in the NHL among teams who have played in four or more shootouts this season.

Vincent Trocheck scored the lone shootout goal for the Rangers, with all three Pittsburgh players failing to convert.

'We've continued to work on it. We'll continue to look at it,' Pittsburgh coach Dan Muse said of his team's shootout woes. 'It just hasn't been good. It's on all of us. We've got to keep looking at ways we can get better at it. We've tried some different guys, we've tried some different things, but the results are what they are.'

The Penguins, who are 8-1-2 since Jan. 19, remained in a tie for second place with the New York Islanders in the Metropolitan Division at 73 points.

'It's a tough game, but we look (to) tomorrow, play back-to-back against Vegas, a good team, great challenge,' forward Evgeni Malkin said. 'Back home. We play hard. I'm not saying anything bad tonight. We played hard.'

--Field Level Media