Barry Trotz, coach: He guided the Capitals to their first Stanley Cup championship in their 43-season history in 2017-18. The 56-year-old ranks fifth all-time in wins (762) and games coached (1,524) in NHL history. He won the Jack Adams Award as NHL coach of the year in 2016. … Robin Lehner, G: He agreed to a one-year contract July 3 after playing the past three seasons with the Buffalo Sabres. Lehner, who turns 27 on July 24, went 14-26-9 with a 3.01 goals-against average and .908 save percentage last season and is 72-97-35 with a 2.82 GAA and .915 save percentage in 219 NHL games with the Sabres and Ottawa Senators. … Leo Komarov, F: The 31-year-old, whose 219 hits were 14th in the NHL last season, had 122 points (52 goals, 70 assists) in 327 games over five seasons with the Maple Leafs. He agreed to a four-year contract July 1. … Valtteri Filppula, F:He agreed to a one-year contract July 1 and will bring 12 seasons of NHL experience to New York. The 34-year-old has 463 points (168 goals, 295 assists) in 876 games with the Detroit Red Wings, Tampa Bay Lightning and Philadelphia Flyers. … Matt Martin, F:He returns to the Islanders after being acquired in a trade from the Maple Leafs for goalie prospect Eamon McAdam on July 3. Martin played the past two seasons in Toronto after playing his first six with New York. He has 109 points (50 goals, 59 assists) and 853 penalty minutes in 570 NHL games. … Tom Kuhnhackl, F: The 26-year-old agreed to a one-year contract July 2 after playing three seasons with the Pittsburgh Penguins, winning the Stanley Cup in 2016 and 2017. Kuhnhackl has 39 points (11 goals, 28 assists) in 168 NHL games. … Jan Kovar, F:The 28-year-old agreed to a one-year contract July 9 and comes to North America after playing the past five seasons with Magnitogorsk Metallurg in the Kontinental Hockey League, where he had 286 points (97 goals, 189 assists) in 285 games.