A finalist for the Norris Trophy as the NHL's top defenceman, Letang received an eight-year, $58 million contract extension. He would have entered the final season of an existing contract that carried an annual salary-cap hit of $3.5 million. That will now jump to $7.25 beginning in 2014-15.
Dupuis potentially could've been a free agent this week and cashed on his 11-point post-season, but chose to stay to sign a $15 million, four-year deal.
Letang, 26, tied for the scoring lead among NHL defencemen last season with 38 points in 35 games. He has 44 goals and 165 assists in 385 career games over six-plus seasons.
Letang joins star centres Sidney Crosby (12 years, $104.4 million) and Evgeni Malkin (eight years, $76 million) as players the Penguins have given long-term contracts to in the past 13 months.
Under the collective bargaining agreement, Letang cannot sign until Friday. The pact — the longest allowable by terms of the new CBA — will run through the 2021-22 season, when the 6-foot, 201-pound native of Montreal will be 35.
Beginning in 2014-15, the Penguins will be committing $25.45 million of salary cap space to just three players for every season until 2021-22. For the 2014-15 season alone — counting contracts given wingers James Neal and Chris Kunitz, defenceman Paul Martin and goalie Marc-Andre Fleury — the organization already has $44.3 million of cap space accounted for just seven players.
The salary cap for the 2013-14 season is projected at $63.4 million, although it is expected to increase dramatically the following year.
The swift and skilled Letang is one of the NHL's top offensive defencemen. But at times, the former third-round pick has been criticized for play in the defensive end — most recently during a stunning sweep of the Penguins by the Boston Bruins in the Eastern Conference finals. Letang had no points in the series and was a minus-5 over the first two games.
During Pittsburgh's run to the Stanley Cup in 2009, Letang had 13 points, tying for the post-season lead among defencemen with four goals.
Over the past three seasons, Letang leads all NHL defencemen in assists (107). His 0.77 points-per-game average over that span ranks second to Ottawa's Erik Karlsson for players at that position.
Since the end of the regular season, general manager Ray Shero has said extending Letang was a priority. Before the Penguins were swept by Boston, they defeated the Islanders and Senators in the first and second rounds, respectively.
Though he and agent Kent Hughes talked for a while, Shero could have traded Letang during the NHL draft Sunday. A similar scenario played out last summer, when centre Jordan Staal rejected a 10-year contract offer and Shero dealt him to the Carolina Hurricanes in a trade announced from the podium.
It never reached that point with Letang.
Pittsburgh also didn't have to deal with replacing Dupuis.
The 34-year-old winger was third on the team in goals, tied for third with 38 points and led the league with a plus-31 rating, the first Penguins to pull off that feat since Ron Francis did during the 1994-95 season. He is also a key penalty-killer, who blocked 36 shots and is tied for the NHL lead with eight short-handed goals over the past three years.
Dupuis, who also helped the Penguins hoist the Cup four years ago, has 175 goals and 374 points in his career with Minnesota, the New York Rangers, Atlanta and Pittsburgh.