The San Jose Sharks have acquired Erik Karlsson from the Ottawa Senators.
The Senators received center Chris Tierney and defenseman Dylan DeMelo, prospects Josh Norris and Rudolfs Balcers, a conditional 2019 second-round draft pick and a conditional 2020 first-round pick for their captain.
Karlsson was entering the final year of a seven-year, $45 million contract.
"It's extremely rare that players of this caliber become available," Sharks general manager Doug Wilson said in a statement. "The word 'elite' is often thrown around casually but Erik's skillset and abilities fit that description like few other players in today's game. With Erik, Brent Burns and Marc-Edouard Vlasic, we feel we have three of the NHL's top defensemen and stand as a better team today than we were yesterday. We are thrilled to welcome Erik and his wife, Melinda, to San Jose."