Detroit Lions starting right tackle Riley Reiff is headed for free agency, leaving Bob Quinn with a tough decision ahead of him.

Riley Reiff has been a starting offensive tackle for the Detroit Lions the last four seasons. He was selected 23rd overall in the 2012 NFL Draft and spent most of his rookie season as a 6th offensive lineman. After Jeff Backus retired in 2013, Reiff was promoted to the starting left tackle position. He made a switch to right tackle this past offseason after the team drafted Taylor Decker, and had an up and down season.

The big question for Reiff will be: What do teams think his future position is?

The Lions will have him locked in as a right tackle with flexibility, but other teams may view him as a left tackle. There is a big difference in the salaries between the two positions, so Reiff may be tempted to test the market.

The Lions have the advantage of negotiating with him before free agency begins, but if a deal isn’t reached by March 9, Reiff will enter free agency and will likely be one of the top-five offensive tackles on the market.