Now they have to try to repeat without their best defenseman, who was arguably their most important player in the Stanley Cup Playoffs last season.
Letang will have surgery for a herniated disk in his neck and miss the playoffs. He will need 4-6 months to recover, which could take him into the start of training camp and/or next season.
Letang, who hasn't played since Feb. 21, was hopeful rest and rehabilitation would have solved his dilemma enough to allow him to play in the playoffs, but an MRI last week revealed the herniated disk.
"Rehab was going well," Letang said. "Last week it blew up on me. It's hard."
Kris Letang out for Stanley Cup Playoffs]](https://www.nhl.com/news/pittsburghs-kris-letang-out-for-playoffs/c-288462472)
So the Penguins have to go on without Letang. They've done that fairly well for the past 20 games, going 12-5-3 since he left the lineup, including 3-2-2 against teams that have either clinched or on the verge of clinching a berth into the playoffs.
But what the Penguins have done without Letang for the past nearly seven weeks isn't the point. It's what they have to do without him starting next week.
Has a team ever lost its best defenseman to a season-ending injury before the playoffs and still won the Stanley Cup? Not in recent memory, and by recent memory we're going back to before the 1970s Montreal Canadiens, which isn't so recent.
You could argue the Carolina Hurricanes won the Stanley Cup in 2006 without a true No. 1 defenseman. Bret Hedican led their defensemen in ice time per game at 22:40 and Frantisek Kaberle led the defense in points with 13 in 25 games.
So by that example, it is possible for the Penguins to win the Stanley Cup without Letang, because he's really their only true No. 1 defenseman.
But the Hurricanes went through the whole 2005-06 season that way. They were used to it. They had their defensemen slotted the way they wanted them long before the playoffs began.