Matheson exited Friday's practice session early with a lower-body injury. Coach Mike Sullivan told reporters, "He's being evaluated for just a nagging lower-body thing. We don't think it's serious," per Pens Inside Scoop.
The fact that the Penguins moved forward with placing Juuso Riikola on waivers for the purpose of reassignment to the minors should be an indication they expect Matheson to be fully fit in time for Opening Night against the Lightning on Tuesday. Still, it's a situation worth monitoring for fantasy players, especially considering Matheson should be in the mix to quarterback the No. 2 power-play unit this season.