The Detroit Lions held their first padded camp practice of the summer Friday. The big story: Graham Glasgow at center, rookie Tate Ratledge at guard.

ALLEN PARK, Mich. (AP) — The Detroit Lions had one of the NFL’s best offensive lines last season. This year is more of a work in progress.

Tate Ratledge has already made some strides at the center position, as the Detroit Lions continue to try him out at a new ...