Andrej Sekera, a defenseman the Kings acquired at the trade deadline from the Carolina Hurricanes for a first-round draft pick next year and a prospect, signed a six-season, $33-million contract with the Edmonton Oilers on the first day of free agency. Sekera’s tenure with the Kings lasted all of 16 games, and he scored one goal and four points. He suffered a season-ending knee injury in a March 30 game against the Chicago Blackhawks.