The Chicago Blackhawks and Brent Seabrook agreed to an eight-year contract extension on Saturday.

The deal is worth $55 million total, with a $6.875 million average salary that takes effect a year from now, sources told ESPN.com's Pierre LeBrun.

Seabrook was set to become an unrestricted free agent after the season. His last contract was for five years and $29 million. 

The Toronto Maple Leafs announced Sunday that the club has agreed to terms with free agent forward Brad Boyes on a one-year contract.

Boyes was originally invited to training camp with Toronto on a professional try-out.

Boyes, 33, appeared in 78 regular season games last season with the Florida Panthers, collecting 38 points (14 goals, 24 assists) and 20 penalty minutes. The Mississauga, Ontario native has registered 481 points (203 goals, 278 assists) in 762 career NHL games with the San Jose Sharks, Boston Bruins, St. Louis Blues, Buffalo Sabres, New York Islanders and Florida. 

The Ducks have signed goalie John Gibson to a three-year contract extension, the club announced Monday.

The deal is worth an average of $2.3 million per season, a source told ESPN.com. It breaks down as $1.5 million in the first year, $2.1 million in the second season and $3.3 million in the final season.

The Oilers announced a seven-year contract extension for 20-year-old defenseman Oscar Klefbom on Sunday.

According to an NHL source, the contract is worth $4.167 million per season.

Defenseman Michal Rozsival and the Blackhawks agreed to a one-year deal Saturday, according to an ESPN.com report.

Rozsival will carry a $600,000 cap hit and can earn up to $200,000 in bonuses for games played.

The 37-year-old Rozsival played the past three seasons for the Blackhawks and came into their training camp on a professional tryout agreement. He had one goal and 12 assists over 65 games last season.

The Coyotes signed defenseman Steffan Elliott to a one-year, two-way contract Friday. 

The 24-year-old Elliott was scoreless in five games for the Avalanche last season. 

The 27-year-old Tlusty, from the Czech Republic, had 14 goals and 17 assists in 72 regular-season games last season with Carolina and Winnipeg. He has 87 goals and 86 assists in 416 career games in eight seasons with Toronto, Carolina and Winnipeg.

The Blue Jackets have added four individuals to the club’s hockey operations staff, club General Manager Jarmo Kekalainen announced today.  

Former Blue Jackets forward Fredrik Modin has been named a special assistant to hockey operations and longtime NHL player Jarkko Ruutu has been hired as the club’s first European development coach, while Blake Geoffrion and Rick Knickle have joined the club’s scouting staff.

The Chicago Blackhawks have agreed to a one-year deal with Marcus Kruger.

Kruger was a restricted free agent.

The 25-year-old scored seven goals and had 10 assists in 81 regular-season games, then had two goals and two assists in 23 Stanley Cup Playoff games.

The Devils have signed defenseman David Schiemko to a one-year contract for $625,000.

Devils executive vice president and GM Ray Shero announced the signing of the free agent on Thursday.

Schlemko had a goal and three assists in 44 NHL games with Arizona, Dallas and Calgary last season. Tason.