Flyers forward Jaromir Jagr has a mild left groin strain and will miss seven to 10 days. Jagr, 39, left the Winter Classic with a leg injury on Monday. He is in his first season with Philadelphia after three in Russia. Jagr has 12 goals, 31 points and is a plus-12 for the Flyers, who now trail the first-place Rangers by four points in the Atlantic Division.