Mike Rupp and Carl Hagelin: two Pittsburgh Penguins.
Not at the same time, though. But they did share the ice together before: back when they were both members of the New York Rangers.
Back then, they played another outdoor game - also against the Philadelphia Flyers - in which they defeated the Flyers 3-2. Rupp even scored twice in that game (which was half of his output for the entire season; he definitely had his best years in Pittsburgh), so the two took the time to catch up on NHL Network.
Then of course, they get into the more technical elements of the game - with a bit of flattery on Rupp’s part towards Hagelin - and as far as day-before-the-game interviews go, this is a pretty good one.