While Marvel Studios wouldn't comment on the story, the site reports that the deal is moving along very quickly. It was said he accepted the role sometime over the weekend and final negotiations have been rapidly progressing.
The First Avenger: Captain America will be directed by Joe Johnston from a script by Christopher Markus and Stephen McFeely. A July 22, 2011 release date has already been set for the film.
Captain America: The First Avenger was released July 22nd, 2011 and stars Chris Evans, Hayley Atwell, Sebastian Stan, Tommy Lee Jones, Hugo Weaving, Dominic Cooper, Richard Armitage, Stanley Tucci. The film is directed by Joe Johnston.