In the final year of his deal this season, it was no secret that the 28-year-old Shattenkirk was available. On Monday evening MacLellan put the finishing touches on the sort of big deal he seemed unlikely to make at the 2017 NHL trade deadline. To help make the math work, St. Louis is retaining 39 percent of Shattenkirk's remaining salary this season.
Shattenkirk is the key player in the deal for the Caps. He is an offensive-minded defenseman who has played top four minutes for most of his NHL career. Drafted in the first round (14th overall) of the 2007 NHL Entry Draft, he becomes the 15th former first-rounder on Washington's roster.
Thus far this season, Shattenkirk has totaled 11 goals and 42 points in 61 games; he is tied for fourth in the league in scoring among defensemen and becomes the Caps' fifth leading scorer. He is three points off his single-season career high of 45, established in 2013-14. Shattenkirk is tied for second among all NHL defensemen with seven power-play goals this season. All Washington defensemen have combined for three extra-man tallies in 2016-17.
With the lockout-abbreviated 2012-13 season being the lone exception, Shattenkirk has registered 40 or more points in six of his seven NHL seasons, including the current one. He has also recorded double-digit goal totals in three of the last four seasons, again including the current one.
This season, Shattenkirk ranks fourth among the league's defensemen in points per 60 minutes at 2.08. He trails only San Jose's Brent Burns (2.57), Pittsburgh's Justin Schultz (2.12) and Tampa Bay's Victor Hedman (2.12) and his addition gives Washington four defensemen in the top 26 in the league in that regard, along with Matt Niskanen (1.48), John Carlson (1.43) and Dmitry Orlov (1.34). The Caps are the only team in the league able to boast four of the league's top 26 in that category.
With 0.54 goals per 60 minutes this season, Shattenkirk ranks third among all NHL blueliners, trailing only Burns (1.07) and Carolina's Justin Faulk (0.57).
The addition of the right-handed Shattenkirk gives Washington balance on the blueline, too. The Caps now have John Carlson, Matt Niskanen and Shattenkirk on the right side, meaning one of those three players should be on the ice at virtually all times when Washington is at even strength.
Shattenkirk's contract is up at the end of June, so he could be strictly a rental. The conditional pick(s) heading the Blues' way partiallly hinges on how far the Caps go in the playoffs and on whether Washington retains the defenseman beyond this season.
In Copley, the Caps also get the No. 3 netminder they've admittedly been seeking. Washington originally signed Copley as a free agent out of college, then swapped him to St. Louis in the deal that brought right wing T.J. Oshie to Washington two summers ago.
Sanford is the key piece for St. Louis. He was the Caps' second-round pick (61st overall) in the 2013 NHL Draft. He made his NHL debut with Washington on opening night of the 2016-17 season and has two goals and three points in 26 games at the NHL level in his first pro campaign. The Caps signed Malone, formerly with the Carolina Hurricanes, as an unrestricted free agent last summer. He has spent the entire 2016-17 with AHL Hershey.
The addition of Shattenkirk gives the Capitals another proven top four commodity who carries a résumé of consistent production. At a point on the depth chart to be determined by the coaching staff, the Caps can insert Shattenkirk and slide everyone below him down one slot.
Earlier this month, MacLellan obtained veteran right-handed blueliner Tom Gilbert from Los Angeles for a conditional draft pick.