2016 NFL free agency: Amini Silatolu visits Arizona Cardinals

While the Arizona Cardinals have talked about being ready for Jonathan Cooper and D.J. Humphries to start at right guard and right tackle. But they are not going to be content just handing them the job without some competition. To perhaps compete or even allow Cooper to move to center, the Cardinals brought in a free agent with some position flexibility.

According to ESPN's Adam Schefter, free agent offensive lineman Amini Silatolu for a visit on Sunday. Drafted in the second round in 2012, he played four seasons for the Carolina Panthers.

He played in 33 games in four seasons, starting 28, but they were injury-plagued. He suffered a torn ACL twice, ending his 2013 season and then again in 2015.

He has mostly played left guard, but can play the other side and he was set to take over at right tackle in November when he suffered his knee injury in practice.

He is a solid option for Arizona if he is healthy. The problem is he has never played 16 games in a season. He played 15 in his first season, but since then, he hasn't played in more than eight.

If he were to sign with the Cardinals, he might not be ready to go in offseason work. But if healthy, he is starting material

Would he be brought in to move Cooper to center, to compete with Cooper or maybe to even compete with Humphries?