EAST MEADOW, NY -- New York Islanders [http://thn.com/isles] No. 1 overall pick Matthew Schaefer [https://www.theelmonters.com/p/barzal-schaefer-islanders-living-with-vet] will be part of the game group that faces the Philadelphia Flyers on Sunday night. The 18-year-old will skate alongside veteran Scott Mayfield at 5-on-5 while quarterbacking the second power-play unit. Here's the rest of the game group and lines: Puck drop is slated for 7 PM ET at UBS Arena. Here's how to watch: How To Watch Islanders First Preseason Game vs. Philadelphia Flyers [https://deweb-519a7.b-cdn.net/post-images/39c851ee-0de5-44c2-838d-e8d082a2b9ed.jpeg] How To Watch Islanders First Preseason Game vs. Philadelphia Flyers On Sunday night, the <a href="http://thn.com/isles">New York Islanders</a> battle the <a href="https://thehockeynews.com/nhl/philadelphia-flyers">Philadelphia Flyers </a>to kick off their preseason slate. [https://thehockeynews.com/nhl/new-york-islanders/latest-news/how-to-watch-islanders-first-preseason-game] Stay updated with the most interesting Islanders stories, analysis, breaking news and more! Tap the star to add us to your favorites on Google News [https://news.google.com/publications/CAAqBwgKMK-q0gsw7sXpAw/sections/CAQqEAgAKgcICjCvqtILMO7F6QMwpuDfCA?ceid=CA:en&oc=3] to never miss a story.