ESPN is reporting that the Colts are after a CFL defensive tackle.

Grigson also confirmed that the Colts are in strong pursuit of 300-pound defensive tackle Armond Armstead, who has been playing in the Canadian Football League.

"He was here on a visit, he's a talented guy, I feel he fits this defense nice and had some versatility with this defense," Grigson said.
http://espn.go.com/nfl/story/_/id/88...ll-major-needs

I wonder if they're looking at him as a DE. Seems like a bigger need than DT.