Chris Evans has shocked fans by inadvertently posting a picture of a penis to his social media.

The 39-year-old - best known for his portrayal of Captain America in the MCU - shared a video of him playing Heads Up with family to his Instagram stories.

The short clip ended with what appeared to be a screengrab of a camera roll - and among the pictures was a photograph of a semi-erect penis.

The camera roll also included a picture of Evans's face alongside the caption "GUARD THAT PUSSY".

Evans, who is thought to be single, has since deleted the video.