Sandin is finding his footing in Washington

ARLINGTON, Va. — The Washington Capitals were sellers at the trade deadline for the first time in over a decade, moving on from five key contributors in an array of deals before the 3 p.m. cutoff point on March 3. Washington’s deadline was not only defined by the players they traded, however. In return for Erik Gustaffson, the Capitals acquired Rasmus Sandin from the Toronto Maple Leafs, a young defenseman eager for more playing time. It’s been one month since Sandin joined the Capitals. And, after being buried on Toronto’s third defensive pairing for much of the season, the recently…