According to NHL Insider reporter Chris Johnston, @NorthStarBet/, @StarSports,@TSNHockey, @sdpnsports:

Matt Duchene (NSH), Mike Reilly (BOS), Blake Wheeler (WPG), and Kailer Yamamoto (DET) have been placed on unconditional waivers to be bought out before tonight’s 5 p.m. ET deadline.

https://twitter.com/reporterchris

Source: Twitter