ALLEN PARK -- One of the more interesting competitions at training camp so far is at right tackle between Jon Jansen and Gosder Cherilus.

Cherilus started 13 games at the position last year which was his second in the league. Jansen, who had always played left tackle with the Washington Redskins, filled in at right tackle occasionally last year.

At camp, they switch back and forth from drill to drill.

“We’re trying to find the best fit for us, trying to make guys concrete for their jobs and find the best guy at the end of training camp,’’ coach Jim Schwartz said.

And so the battle continues. It will be interesting to see how it plays out especially in the preseason opener on Saturday at Pittsburgh.

(Follow me on Twitter @paulapasche.)