2015 NFL training camp: Undrafted linebackers flashing for Arizona Cardnals

When the Arizona Cardinals were signing undrafted rookies after the draft, inside linebacker was a priority. It happens to be a position of concern. After bringing in several, the players are shining in their own way.

According to head coach Bruce Arians, they are doing well. When asked who is doing well in the absence of Sean Weatherspoon, who has been out with a hamstring injury, Arians mentioned Edwin Jackson (now called Poundcake), Andrae Kirk and Alani Fua.

Earlier in camp, he brought up Gabe Martin as a guy he wants to watch.

Kirk "has stepped up."

Jackson also "has stepped up."

Fua, who was given the biggest signing bonus of all the undrafted rookies, "really flashes at times," according to Arians. "He's a big, long guy that inside, outside, nickel, dime; he's a guy that could really have position flexibility that could do a lot of things."

It is certain Sean Weatherspoon and Kevin Minter will be on the roster. After that, at inside linebacker, the position is wide open. There are Glenn Carson and Kenny Demens who both were on the roster last year, but any of the undrafted kids could push for one or both backup jobs.

As we start the preseason, that position will be one to watch when the reserves go in.