The Flyers' new-look fourth line has been one of the few constants so far at training camp

Hockey training camps feature a lot of moving parts. This Flyers camp is no different. Looking to add a veteran to a rebuilding group, the Flyers signed Hathaway, 31, who started the year with Washington last season, finished it on the best team in the league (Boston), and has played in the playoffs in each of his past five seasons.