The 2015 NHL Draft is just a few hours away, and the Boston Bruins already have made the first blockbuster trade.

The B’s traded Dougie Hamilton to the Calgary Flames for three 2015 draft picks Friday, the team announced.

[tweet https://twitter.com/NHLBruins/status/614516165491068928 align=”center”]

Boston now has 10 picks in this year’s draft, including two in the first round (Nos. 14 and 15) and two in the second round (Nos. 37, 45, 52).

Hamilton, a 22-year-old defenseman selected ninth overall by Boston in the 2011 NHL Draft, is a restricted free agent coming off an impressive 2014-15 season in which he set career highs in goals (10), assists (32) and points (42).