Generation Kill actor Wilson Bethel was recently announced as one of the candiates up for Captain America, and now Wilson has announced on his Facebook page yesterday that he's no longer in the running for the role of Captain America. There isn't a direct source to the Facebook quote, but IGN confirms it.
"O Captain, My Captain... I am not He... Thanks for all of the love & support."
The guys remaining...
Mike Vogel
Sebastian Stan (Speculated Supporting Role, Not Cap)
Channing Tatum
Ryan Phillippe
Chris Evans
Neal Bledsoe (Canadian reading for Another part in the film)