Chicago Blackhawks defencemen Brent Seabrook and Calvin de Haan are scheduled for season-ending right shoulder surgeries on Friday.
The last-place Blackhawks placed Seabrook and de Haan on long-term injured reserve on Thursday, freeing up significant space under the salary cap.
De Haan was acquired in a June trade with Carolina. He had surgery on the same shoulder last off-season.
Seabrook has been a steady presence for Chicago since his NHL debut in 2005. He helped the Blackhawks win the Stanley Cup in 2010, 2013 and 2015.
He was a healthy scratch for Chicago’s 4-1 loss to Colorado on Dec. 18. The Blackhawks then announced the next day he was undergoing further medical evaluation.