Victor Hedman, 27, Ryan McDonagh, 29, and Mikhail Sergachev, 20, are positioned to be the core of the Lightning defensemen for years to come. Veterans Anton Stralman, 32, Dan Girardi, 34, and Braydon Coburn, 33, each enters the final season of his contract and must show he can help a group that struggled in the second half of last season.
Stralman had 14 assists and was plus-29 last season and is a leader in the locker room, including for Sergachev in his rookie season. Girardi and Coburn are likely to see a reduction in ice time with Sergachev gaining more responsibility, but they will be asked to improve a penalty kill that was 28th in the NHL last season (76.1 percent).