What happened: Philadelphia lists Rasmus Ristolainen with an upper-body injury and an absence of approximately two weeks. He missed Monday practice after returning Saturday from a left hand injury.

Why it matters: Philadelphia enters the week off a 3-1 road win at Buffalo despite lineup absences. The absence thins the right side for a club already back on the trade boards after a strong postseason.

What to watch: Philadelphia hosts Columbus on Tuesday at 7 p.m. ET at Xfinity Mobile Arena.