For the first time in his young N.H.L. career, Taylor Leier made the Philadelphia Flyers’ opening-night roster. His parents, Tim and Cindy, shared in his triumph by making the trip from Saskatoon, Saskatchewan, to watch him play early-season games in Anaheim and Los Angeles last month.

Leier’s brother, Keaton, could not make the trip to Southern California. He was instead enjoying a career milestone of his own. A first-year company dancer with the Atlanta Ballet, Keaton Leier, 21, had already been training 10 hours a day, five days a week, for more than a month by the time his older brother reported to the Flyers’ training camp in September. Keaton’s training regimen impresses his hockey-playing brother, who was selected by Philadelphia in the fourth round of the 2012 draft.

“You should see him: He can do the splits up the wall,” Taylor Leier, 23, said. “That’s how strong he is in his lower body.”

After he performed with the second company at the Houston Ballet last year, Keaton Leier’s move to Atlanta is a major promotion. The months of training leading up to the company’s first performance in December have not gone unnoticed by Taylor, who is hoping for a breakout season in the N.H.L.