Marc Staal, D:The 36-year-old signed a one-year contract July 3 after he had 15 points (three goals, 12 assists) in 82 regular-season games for the Florida Panthers last season. He also averaged 20:56 of ice time in 21 Stanley Cup Playoff games, helping the Panthers advance to the Stanley Cup Final. ... Garnet Hathaway, F:The 31-year-old signed a two-year contract July 1 after he had 22 points (13 goals, nine assists) in 84 games last season, including six points (four goals, two assists) in 25 games after he was acquired by the Boston Bruins in a trade with the Washington Capitals on Feb. 23. He also had one assist in seven playoff games. ... Sean Walker, D:The 28-year-old was acquired as part of a three-team trade with the Los Angeles Kings and Columbus Blue Jackets on June 6. He had 13 points (three goals, 10 assists) in 70 regular-season games, and no points in two playoffs games for the Kings last season. ... Cal Petersen, G: The 28-year-old was acquired in the same trade as Walker. He was 5-3-2 with a 3.75 goals-against average and .868 save percentage in 10 games (nine starts) for Los Angeles last season. … Ryan Poehling, F: The 24-year-old signed a one-year contract July 1. He had 14 points (seven goals, seven assists) in 53 games with the Pittsburgh Penguins last season.