Captain America star Chris Evans became a trending topic on Twitter on Saturday, September 12, after he appeared to post and delete a nude pic.The Marvel star, 39, took to his Instagram Stories to share a clip of himself and a few pals playing a game of Heads Up but at the end of the clip, the video showed the Knives Out star’s camera roll, and on the row above the clip, there was a black-and-white d–k pic, which was presumably a photo of the actor’s junk and not someone else’s.