The Vegas Golden Knights acquired Mark Stone from the Ottawa Senators on Monday, according to Postmedia's Bruce Garrioch.
Garrioch reported the Senators received Erik Brannstrom. Oscar Lindberg and a 2020 second-round draft pick.
Stone was in the final year of his contract and due to become an unrestricted free agent in the offseason. According to TSN's Bob McKenzie, Stone agreed to an eight-year extension with the Golden Knights worth $9.5 million annually.
This article will be updated to provide more information on this story as it becomes available.