The play occurred in the final seconds of the second period in Sunday's game. Malkin was assessed a four-minute double-minor for high-sticking and a two-minute minor for slashing.
Borowiecki didn't return for the third period. Pittsburgh ultimately won the contest in overtime.
Malkin has one prior suspension in his career, coming in 2019 after he swung his stick at then-Philadelphia Flyers forward Michael Raffl.
Toronto Maple Leafs star Auston Matthews was suspended two games for a similar play last month after catching Rasmus Dahlin with a high cross-check.
Losing Malkin is a critical loss for the Penguins as they battle for playoff seeding. The club currently sits third in the Metropolitan Division with 94 points and eight games remaining, but the Washington Capitals are only four points behind with two games in hand. Malkin will miss half of his team's final regular-season games.
Florida is using its modern gold-and-red color scheme while utilizing the team's secondary logo of a palm tree and hockey stick as the shoulder crest. Hopefully the original ferocious Panther logo makes it on the front as the primary logo.
Montreal Canadiens
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Tampa Bay is using its old Lightning crest as a shoulder patch, and the club is sticking with the classic blue-and-white combo. The design takes its inspiration from 2004, the first season the Lightning won the Stanley Cup.
The Leafs are surprisingly introducing grey, with a simple blue maple leaf as the shoulder patch. The sweater will be based on the team's design from 1970, but it doesn't seem like Toronto will push as many boundaries as some other teams.
The Penguins really didn't include much in their teaser. Due to the amount of outdoor games that have featured Pittsburgh in recent years, the team may need to get extra creative to give us a design we haven't seen.
Washington is sticking with its current color combination, but the Capitals teased the logo used at the start of the Alex Ovechkin era. Consider us intrigued.
The Predators are bringing back their old silver sleeves, though that part of the jersey isn't as shiny as it was before. Pair that with some excess yellow, and these sweaters could get wild.
While the other relocated franchises are featuring their roots in some way, the Jets decided not to pay tribute to the Atlanta Thrashers' unique colors.
The Flames are seemingly keeping it simple. The team's current primary logo is the shoulder patch, and the club is going with a predominantly black color scheme.