Nolan Patrick, the Flyers second-line center, will miss seven to 10 days because of what general manger Ron Hextall on Thursday called an upper-body injury.
In the first period of the Flyers' 7-4 win Wednesday in Ottawa, Patrick got hit in the face with a stick and later got crunched into the boards by Mark Stone and left the ice.
Patrick, 20, the No. 2 overall pick in the 2017 draft, finished strongly in the second half of last season. He has no points and is minus-5 in four games this season and did not score during the preseason.