BREAKING: Blues Kevin Shattenkirk traded to Capitals

The Washington Capitals made the biggest trade of the season on Monday night, acquiring defenseman Kevin Shattenkirk from the St. Louis Blues.

ESPN insider Pierre LeBrun reports Washington is sending a first round draft pick in 2017, a conditional second round draft pick in 2018 as well as 22 year old forward Zach Sanford back the other way.

It's a big price to pay for a rental player who intends to hit free agency this summer. The Blues retained 39% of Shattenkirk's salary. Washington is gunning for the Stanley Cup this season.