A brave little boy named Bridger went viral on social media this week after news spread that he shielded his younger sister from a dog attack.

Bridger needed more than 90 stitches after being attacked by the dog and his aunt Nicole Noel Walker posted his story on Instagram. She said she wanted the Marvel superheroes to know that they have a new superhero joining their ranks... and the stars have been reaching out to him!

Chris Evans told Bridger that he will be sending him an authentic Captain America shield and Mark Ruffalo also wrote a touching note to him.