Rumored last week, Variety has now confirmed that Frank Grillo, who appeared earlier this year in The Grey, will play Brock Rumlow, better known as Crossbones, in Marvel Studios' Captain America: The Winter Soldier.

Although the tweets have since been deleted, Grillo himself launched the rumors last Monday when he mentioned a visit to Los Angeles and a meeting with Marvel along with the hashtag "#captainamerica."

First introduced in the comics in the late 1980's, Crossbones is better known today for his major role in Ed Brubaker's modern arc on "Captain America." A highly trained mercenary working for the Red Skull, Crossbones played a major role in the assassination of Steve Rogers following Marvel's "Civil War."

Set to be directed by Anthony and Joe Russo, Captain America: The Winter Soldier will star Chris Evans and Anthony Mackie and is planned to hit theaters on April 4, 2014.

(Photo Credit: WENN.com)