The Senators defenseman was forced from Saturday's contest with a lower-body injury after crashing hard into the boards early in the first period and is listed as day to day, head coach Guy Boucher noted, according to TSN's Brent Wallace.
In turn, 22-year-old Ben Harpur will take Borowiecki's spot on the blue line. Harpur spent the majority of the season with the Binghamton Senators of the American Hockey League where he posted two goals and 27 points in 63 games. He went pointless in six games with the big club.
The Penguins hold a commanding 3-0 series lead over the Columbus Blue Jackets after a comeback overtime win on Sunday night, but head coach Mike Sullivan knows they aren't out of the woods.
"We haven't accomplished anything yet," Sullivan said. "We have to stay in the moment. We have to keep our mindset where it has to be."
Of course, the odds are firmly in the Penguins' favor. The team is averaging two more goals than the Blue Jackets per game, while history certainly doesn't bode well for the Blue Jackets either. The Penguins' three wins this series are more than Columbus has managed to earn all time in the playoffs.
Werenski took a puck to the face in Game 3 on Sunday night, and after an attempt to come back, was forced to leave the contest for good due to impaired vision. To make matters worse, the Penguins scored mere seconds after he fell to the ice, bloodied as the result of a deflected Phil Kessel wrister.
How long the Blue Jackets will carry on without Werenski remains to be seen, as Columbus faces a 3-0 series deficit against Pittsburgh, with a possible sweep on the line Tuesday night.
The 19-year-old rearguard had a tremendous season with the Blue Jackets, constantly drawing praise from Tortorella, who admitted "Werenski's probably our best player," following the deflating Game 3 loss.
If he weren't competing against Auston Matthews, Patrik Laine, et al., Werenski would be a shoo-in for rookie of the year honors, as his debut NHL season saw him record 11 goals and 36 assists while averaging 20:55 of ice time in 78 games.
Zaitsev was injured in the regular season finale on April 9, and missed the first two games of Toronto's first round series with what was classified as an upper-body ailment.
The timing couldn't be better for the Maple Leafs, who lost Roman Polak for the season after a hard hit from Brooks Orpik in Game 2.
Zaitsev has been a key piece of Toronto's top four all season long, averaging 22:01 per night, while contributing four goals and 32 assists.
The 2017 Stanley Cup Playoffs are off and running.
We're 20 games deep and already fans have experienced both jubilation and heartbreak. Of those games, eight have gone to overtime and four have seen multi-goal comebacks.
The playoffs bring out the best of the best and create lasting memories for die-hard fans. So far, 2017 doesn't appear to be an exception.
Here are the top five storylines of the playoffs so far:
Cam Talbot
After a questionable first game that saw the Edmonton Oilers netminder concede a rather soft overtime winner to the San Jose Sharks, Cam Talbot has rebounded in a big way.
In fact, he's been perfect since, posting two shutouts, helping the Oilers claim a 2-1 series lead.
Talbot has now turned away 80 of the 83 shots he's faced in the first round and aided his club in reclaiming home-ice advantage.
Zack Kassian and company have also stepped up their game, as the Oilers have allowed just 39 shots over the past two games. Nevertheless, Talbot has been perfect and the young Oilers appear to be back in the driver's seat.
In both games, the Maple Leafs took early leads and forced comebacks from the Capitals. Washington was able to take Game 1 thanks to Tom Wilson's overtime winner, but was unsuccessful on Saturday after Kasperi Kapanen ended it in double OT.
Saturday night's win has now given the Maple Leafs home-ice advantage and has already proven those expecting a sweep by the Capitals wrong. The series is far from over, but after two games Mike Babcock's young club is quickly putting doubts in the minds of the Capitals.
Western giants struggling
Oh how the mighty have fallen.
OK, the Chicago Blackhawks and Minnesota Wild haven't officially been eliminated, but the top two clubs in the Western Conference are certainly not looking good.
The Blackhawks have been shutout in their first two games - both on home ice for that matter - while the Wild are now just one loss away from being swept by the St. Louis Blues.
It's surprising, considering the Blackhawks and Wild entered the postseason with the best and third-best odds, respectively, of winning the Stanley Cup.
Of course, anything could still happen, but both teams have their backs against the wall, which is not a spot most expected these clubs to be in.
Rookie Jake Guentzel has certainly stolen the show with a hat trick in Game 3, giving him a total of four goals and five points in three games, but the fact is he isn't a lone wolf tallying points for the Penguins.
So far, only three players on the Penguins' roster have yet to find the scoresheet against the Columbus Blue Jackets. Evgeni Malkin leads the pack with six points, Sidney Crosby has matched Guentzel with five, and Phil Kessel has averaged a point per game with three.
The Penguins as a team are averaging four goals per game and just two against. That's a winning recipe right there.
The Canadiens' offseason signee appears to be worth every penny, as the veteran forward scored the Game 2 overtime winner on Friday night to cap off a three-point evening and followed that up with another two points in Sunday's 3-1 win, including a ridiculous breakaway goal in the third period.
Radulov now has five points in three games, and after the threat of losing both games on home ice, the Canadiens can breathe a little easier. Radulov is just shy of a point per game in the playoffs, with 19 points in 21 career postseason games.
One must think he's now in line for a nice little raise when he signs his next contract.
Follow theScore's fantasy feed on Twitter (@theScoreFantasy) for the latest news, features and more. And download Squad Up, theScore's free-to-win-money sports game.
Here is a look at the Squad Up daily NHL fantasy picture for Monday, April 17 (all advanced statistics courtesy of Corsica.Hockeyand apply to 5v5 situations):
Dynamic Duos
C Sean Monahan (49K) & LW Micheal Ferland (25K), Flames (vs. Ducks): Drafting Monahan and Ferland saves you a nice amount of cash over selecting LW Johnny Gaudreau (62K). Considering Gaudreau has taken four shots and has only one assist, you won't miss his services too much. Ferland, on the other hand, has registered 10 shots. Monahan has two power-play markers to start the series.
LW Alex Ovechkin (69K) & C Nicklas Backstrom (64K), Capitals (at Maple Leafs): Ovechkin was dominant in Game 2, scoring a power-play goal on nine shots and registering seven hits. Backstrom also tallied his first goal of the series in Game 2. With Washington maintaining a solid CF% lead over Toronto (53.6 to 46.3), Ovechkin and Backstrom should continue to take over this series.
Goalie Breakdown
TARGET - Pekka Rinne (102K), Predators (vs. Blackhawks): Asking for a third consecutive shutout against the Blackhawks is an extremely tall task. But Rinne is looking more like the Rinne of old to open the playoffs, and there's no reason he can't continue to stifle Chicago's offense. Despite firing 59 shots, Chicago has just eight high-danger chances.
FADE - John Gibson (86K), Ducks (at Flames): If the Flames are going to get back into this series, Game 3 at home is a must-win. They'll stand a better chance of getting that victory with Gibson moving out of Anaheim. The Ducks goaltender was 8-9 on the road this year, with a .913 SV% and 2.53 GAA. The Flames lead all playoff teams in xGF60 with a mark of 3.64.
Bargain Plays
LW Micheal Ferland (25K), Flames (vs. Ducks): As mentioned, Ferland has been active on the offensive end, firing 10 shots on net. Though he's yet to register a point, he's putting himself in a position to do so. He has an established spot on the power play and plays with Calgary's top offensive weapons.
RW Bobby Ryan (36K), Senators (at Bruins): Ryan leads the Senators in shots with eight, and has a goal and assist through Ottawa's first two games. The 14 minutes a night he's playing isn't a lot, but it is enough for Ryan to be productive. Boston G Tuukka Rask posted a 2.41 GAA on the road this season.
Top Fades
RW Patrick Kane (78K), Blackhawks (at Predators): Kane has taken nine shots to open the Chicago-Nashville series. But with Rinne a brick wall in the crease, Kane has been stifled. At his price, he needs a multi-point effort to truly be worth value. Whether or not Chicago can squeeze anything by Rinne right now isn't worth this sizeable an investment.
D Dougie Hamilton (51K), Flames (vs. Ducks): Hamilton has eight penalty minutes and just two shots on net through Calgary's first two games. For the regular season, Hamilton averaged 2.7 shots per game and collected just 64 PIMs over 81 games. Though he's playing 22 minutes a game, sitting in the box and being passive on the blueline is of no help.
Contrarian Options
LW James van Riemsdyk (50K), Maple Leafs (vs. Capitals): Toronto's headlining rookie class should capture most of the ownership for those who target any Maple Leafs. But it has been JVR putting together a strong postseason, picking up a goal and an assist with 11 shots on net. His ice time is up to 21 minutes a game from 15 in the regular season.
D T.J. Brodie (25K), Flames (vs. Ducks): Some may associate Brodie's bargain price with lack of production. That would be fair considering he tried just 78 shots in 82 regular season games. But the long-time Flame has two power-play assists, seven shots, and three blocked shots to open the series. His six minutes of PP time gives him great upside.
The St. Louis Blues own a 3-0 stranglehold in their first-round series versus the Minnesota Wild, but underneath the surface of the commanding lead, the numbers aren't so convincing.
Jake Allen has stolen the show so far, allowing only three goals, but beyond his spectacular performance level early on, the Blues haven't been the better team. Statistically, at least.
Additionally, Minnesota has out-attempted St. Louis 228-to-142 in all situations through three games, but can't crack Allen.
Only four teams have ever erased a 3-0 deficit in the Stanley Cup playoffs, most recently in 2014, when the Kings shocked the Sharks.
During that same playoff, the Wild endured a similar situation versus Colorado. The Avalanche stormed out to a 2-0 series lead in the first round, despite Minnesota heavily controlling play. Eventually, the series went to Game 7, and the Wild's diligence paid off in the form of a thrilling comeback win.
No one enjoys scoring goals in the Stanley Cup Playoffs more than Alexander Radulov.
The Montreal Canadiens forward has two this spring, and he's celebrated each like it was his first - and maybe his last. It's as simple as this: It's been awesome to watch. Dude cares. Like, a lot.
Here are some of our favorite photos of Radulov through the first three games of Montreal's first-round series against the New York Rangers.
(Photo courtesy: Action Images)
Hear Radulov roar.
(Courtesy: Getty Images)
OT winner. Let's go.
(Courtesy: Getty Images)
Catch him if you can.
(Courtesy: Action Images)
Seriously, you can hear him.
(Courtesy: Getty Images)
Still screaming.
(Courtesy: Getty Images)
A one-handed goal ...
(Courtesy: Getty Images)
... At Madison Square Garden.
(Courtesy: Getty Images)
Jeff Petry scored on this play, but you could easily be convinced it was Radulov.
(Courtesy: Getty Images)
You kind of have to want Radulov to score the Stanley Cup-winning goal, preferably in overtime, just to see what he'd do.