Study the following poster, and answer the question that follows.

New Soccer League! Tryouts, Thursday at 3:30 p m. Open to local teens ages 14 to 17. If you are interested in playing, bring to tryouts, birth certificate and proof of recent physical exam from your family doctor. Image of soccer ball.

What can you infer about the health requirements of teens who want to be on this soccer team? Support your inference with a piece of evidence from the poster.